MCQ Questions for Class 8 Math Chapter 3 Understanding Quadrilaterals with Answers
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MCQ Questions for Class 8 Math Chapter 3 Understanding Quadrilaterals with Answers
Choose the correct option from the following:
Question 1.Number of sides a triangle has
(a) one
(b) two
(c) three
(d) four
... Answer : (c) three
Question 2.Number of vertices a triangle has
(a) one
(b) two
(c) three
(d) four
... Answer : three
Question 3.Number of sides a quadrilateral has
(a) one
(b) two
(c) three
(d) four
... Answer : four
Question 4.Number of vertices a quadrilateral has
la) one
(b) two
(c) three
(d) four
... Answer : four
Question 5.Number of diagonals a quadrilateral has
(a) one
(b) two
(c) three
(d) four
... Answer : two
Question 6.The sum of the measures of all the three angles of a triangle is
la) 90°
(b) 180°
(c) 270°
(d) 360°.
... Answer : 180°
Question 7.The sum of the measures of all the four angles of a quadrilateral is
(a) 90°
(b) 180°
(c) 270°
(d) 360°.
... Answer : 360°
Question 8.Number of diagonals a triangle has
(a) zero
(b) one
(c) two
(d) four
... Answer : zero
Question 9.Number of diagonals a quadrilateral has
(a) two
(b) four
(c) five
(d) six
... Answer : two
Question 10.It is square. Then among the following which one of the right information about its side
(a) only one pair sides are equal
(b) opposite sides are equal
(c) all four sides are equal
(d) none of the above.
... Answer : all four sides are equal
Question 11.It is a rectangle. The which statement is correct about its sides
(a) one pair sides are equal
(b) all sides are equal
(c) opposite sides are equal
(d) none of the above.
... Answer : opposite sides are equal
Question 12.It is a rhombus then which statement is correct for it
(a) all sides are equal and all each angle measure 90 degree
(b) opposite sides are equal and each angle measure 90 degree.
(c) all sides are equal
(d) each of the angle measure 90 degree.
... Answer : all sides are equal
Understanding Quadrilaterals Class 8 Math MCQs Questions with Answers
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Question 13.It is a kite. Which information is correct about kite
(a) all sides are unequal
(b) opposite sides are equal
(c) two pair adjacent sides are equal
(d) all sides are equal.
... Answer : (c) two pair adjacent sides are equal
Question 14.The diagonals do not necessarily intersect at right angles in a
(a) parallelogram
(b) rectangle
(c) rhombus
(d) kite.
... Answer :(a) parallelogram
Question 15.The ratio of four angles of a square is
(a) 1 :2: 3 : 4
(b) 2 : 3 : 4 : 5
(c) 1 : 1 : 1 : 1
(d) 1: 2 : 1 : 2
... Answer :(c) 1 : 1 : 1 : 1
Question 16.Two adjacent angles of a parallelogram is supplementary. Then bisector of any two adjacent angles intersect at
(a) 45 degree
(b) 60 degree
(c) 90 degree
(d) 180 degree.
... Answer :(c) 90 degree
Question 17.Which of the statement is incorrect
(a) rectangle is a parallelogram
(b) square is a parallelogram
(c) rhombus is a parallelogram
(d) kite is a parallelogram.
... Answer :kite is a parallelogram
Question 18.The three angles of a quadrilateral are 75°, 95° and 90°. Then the measure of the fourth angle is
(a) 65°
(b) 75°
(c) 100°
(d) 135°.
... Answer :(c) 100°
Question 19.When measure of four angles of a quadrilateral are equal then what will be the measure of the each angle?
(a) 60°
(b) 70°
(c) 80°
(d) 90°.
... Answer :(d) 90°
Question 20.When measure of three angles of a quadrilateral are 80° each. Then find the measure of the fourth angle.
(a) 90°
(b) 140°
(c) 120°
(d) 70°.
... Answer :(c) 120°
Question 21.The measure of two opposite angles of a quadrilateral are 120° and 60°. Then what will be the measure of sum of the remaining two opposite angles?
(a) 190°
(b) 180°
(c) 360°
(d) 90°.
... Answer :(b) 180°
Question 22.The two angles of a quadrilateral are 95° and 125″. The remaining two angles are equal. Then what will be the measure of the each of the remaining angle?
a) 30°
(b) 60°
(c) 70°
(d) 45°.
... Answer :(c) 70°
Question 23.Diagonals of a rectangle are
(a) equal but not bisect each other
(b) equal , bisect each other and perpendicular to each other
(c) equal and bisect each other
(d) unequal and bisect each other at right angles.
... Answer :(c) equal and bisect each other
Question 24.Diagonals of a quadrilateral are bisect each other but they are not equal and not perpendicular to each other. The quadrilateral is
(a) rhombus
(b) square
(c) rectangle
(d) parallelogram.
... Answer :(d) parallelogram
NCERT Understanding Quadrilaterals Class 8 Math MCQs Questions with Answers
Question 25.Diagonals of a quadrilateral is equal, bisect each other and also perpendicular to each other. The quadrilateral is
(a) square
(b) rectangle
(c) rhombus
(d) parallelogram.
... Answer :(a) square
Question 26.Which of the statement is correct
(a) all kite are a rhombus and all rhombus are a square
(b) all rhombus are a square and all square are a rectangle
(c) all square are a rectangle and all rectangle are parallelogram.
(d) all rhombus are rectangle and all rectangle are parallelogram.
... Answer :(c) all square are a rectangle and all rectangle are parallelogram
Question 27.
... Answer :
Question 28. The ratio of two adjacent angles of a parallelogram is 2 : 3. Measure of the angles are
(a) 60°, 120°
(b) 90° , 90°
(c) 120° , 60°
(d) 72° , 108°
... Answer :(d) 72° , 108°
Question 29.A rectangle has two diagonals. One of its length is 12 cm then what will be the length of the other diagonal ?
(a) 6 cm
(b) 24 cm
(c) 12 cm
(d) 18 cm
... Answer :(c) 12 cm
Question 30.Length of a side of a rhombus is 8 cm, then its perimeter is
(a) 16 cm
(b) 32 cm
(c) 20 cm
(d) 36 cm
... Answer :(b) 32 cm
Question 31.Which of the following statements is false about rectangle?
(a) Each angles of a rectangle are equal to 90 degree
(b) rectangle does not has obtuse angle
(c) The diagonals of a rectangle bisect each other
(d) The opposite sides of a rectangle are not equal.
... Answer :(d) The opposite sides of a rectangle are not equal
Question 32.Which of the following statement is false about square?
(a) Each angle of a square is equal to 90 degree
(b) all sides of a square are equal
(c) The diagonals of a square bisect each other at right angles
(d) The diagonals of a square are not equal.
... Answer :(d) The diagonals of a square are not equal.
Question 33.Which of the following statement is false ?
(a) All the rectangles are parallelograms
(b) All the squares are rectangles
(c) All the rectangles are squares
(d)All the rhombuses are parallelograms.
... Answer :(c) All the rectangles are squares
Question 34.Which of the following statement is true ?
(a) All the rectangles are squares
(b) All rectangles are parallelogram
(c) All the rhombuses are square
(d) Each parallelogram is a trapezium.
... Answer :(b) All rectangles are parallelogram
Question 35.Which of the following statement is true ?
(a) All the rhombuses are squares
(b) Each square is a parallelogram
(c) Each parallelogram is a rectangle
(d) Each trapezium is a parallelogram.
... Answer :(b) Each square is a parallelogram
Question 36.It is a quadrilateral. It is a parallelogram. Its one angle is 90 degree. Opposite sides are equal. It is
(a) square
(b) rectangle
(c) rhombus
(d) kite.
... Answer :(b) rectangle
MCQ Quadrilaterals Class 8 Questions
Question 37.It is a rectangle. Two adjacent sides of it are equal. It is also called
(a) square
(b) kite
(c) rhombus
(d) none of these.
... Answer :(a) square
Question 38. Which of the following statement is false ?
(a) The two diagonals of parallelogram are perpendicular to each other.
(b) The opposite sides of a parallelogram are equal
(c) The diagonals of a parallelogram bisect each other
(d) All the four sides of a rhombus are equal.
... Answer :(a) The two diagonals of parallelogram are perpendicular to each other.
Question 39.Which of the following statement is false ?
(a) length of the diagonals of rhombus are equal
(b) The diagonals of a rhombus bisect each other at right angles
(c) A rhombus is a parallelogram
(d) All squares are rectangles.
... Answer :(a) length of the diagonals of rhombus are equal
Question 40.A parallelogram has an angle measure 80°, Write the measure of its adjacent angle.
(a)65°
(b) 100°
(c) 80°
(d) 90°.
... Answer :(b) 100°
Question 41.A parallelogram has an angle measure 65°, then what will be the measure of its opposite angle?
(a) 65°
(b) 130°
(c) 90°
(d) 180°.
... Answer :(a) 65°
Question 42.It is a parallelogram. Its all the sides are equal. Measure of the two adjacent angles are 110° and 70°, then the quadrilateral is also called
(a) rectangle
(b) square
(c) rhombus
(d) kite.
... Answer :(c) rhombus
Question 43.Measure of one side of a rhombus is 12 cm. The perimeter of the rhombus is
(a) 12 cm
(b) 24 cm
(c) 36 cm
(d) 48 cm.
... Answer :(d) 48 cm
Question 44.Which is the wrong statement about the kite ?
(a) The diagonals of kite are perpendicular to each other
(b) The diagonals of kite are bisect each other
(c) Only one pair of opposite angles kite is equal
(d) All the four sides of kite are equal.
... Answer :
Question 45.ABCD is a square. Its diagonals meet at O.
OA = 5x – 3, OD = 3x + 9. Find x
(a) 3
(b) 9
(c) 6
(d) 5.
... Answer : (c) 6
Question 46.Find the perimeter of the rectangle ABCD. If AB= 7 cm and BC = 10 cm.
(a) 26 cm
(b) 32 cm
(c) 35 cm
(d) 34 cm
... Answer :(d) 34 cm
Question 47.The four angles of a quadrilateral are in the ratio 4: 6 : 3 : 5. The measure of its largest angle is
(a) 120°
(b) 80°
(c) 60°
(d) 100°.
... Answer :(a) 120°
Question 48.In a parallelogram, measure of two adjacent angles is 4 : 5. The measure of the two adjacent angles are
(a) 80° and 100°
(b) 60° and 120°
(c) 45° and 135°
(d) 90° and 90°
... Answer :(a) 80° and 100°
Question 49.It is a parallelogram. Its two adjacent angles are equal. Then what will be the measure of the two adjacent angles?
(a) 45°, 45°
(b) 30°, 30°
(c) 60°, 60°
(d) 90°, 90°
... Answer :(d) 90°, 90°
Question 50.ABCD is a parallelogram. <A = 60° then the measure of the <B, <C, <D are
(a) 120°, 120°, 60°
(b) 120°, 60°, 120°
(c) 60°, 120°, 120°
(d) none of the above.
... Answer :(b) 120°, 60°, 120°
Question 51. A simple closed curve made up only line segments is called
(a) polygon
(b) circle
(c)cylinder
(d)none of the above
Answer: polygon
Question 52. A polygon having sides three is called
(a) square
(b) rectangle
(c) triangle
(d) pentagon
Answer: triangle
Question 53. A polygon having side four is called
(a) triangle
(b)quadrilateral
(c)pentagon
(d) hexagon
Answer: quadrilateral
Question 54. A polygon having sides five is called
(a) triangle
(b)quadrilateral
(c)pentagon
(d)hexagon
Answer: pentagon
Question 55. A polygon having sides six is called
(a) quadrilateral
(b)hexagon
(c)heptagon
(d)pentagon
Answer: hexagon
Question 56. A polygon having sides ten is called
(a) heptagon
(b) octagon
(c) hexagon
(d) decagon
Answer: decagon
Question 57. The line segment connecting two non-consequtive vertices of a polygon is called
(a) diagonal
(b)vertex
(c) angle
(d) bisector
Answer: diagonal
Question 58. A convex polygon has
(a) all angles are more then 180 degree
(b) all angles are less then 180 degree
(c) two angles are equal to 180 degree
(d) one angle is equal to 180 degree
Answer: (b) all angles are less then 180 degree.
Question 59. A curve that does not ends at the starting point is called
(a) open curve
(b) closed curve
(c)bent curve
(d) none of the above
Answer: (a) open curve
Question 60. A curve that begins and ends at the same point is called
(a) open curve
(b) bent curve
(c) closed curve
(d) none of the above.
Answer: (c) closed curve
Question 61. A polygon which has at least one angle which is measure more then 180 degree is called
(a) convex polygon
(b) open polygon
(c) concave polygon
(d) none of tha above.
Answer: (c) concave polygon
Question 62. A closed curve which does not intersect itself is called
(a) simple closed curve
(b) cmplex closed curve
(c) intersect closed curve
(d)none of the above.
Answer: (a) simple closed curve.
Question 63. When a polygon having all angles are equal and all sides are equal is called
(a) regular polygon
(b)irregular polygon
(c) convex polygon
(d)none of the above.
Answer: (a) regualr polygon
Question 64. When a polygon which does not have all equal sides are called
(a) regular polygon
(b) irregular polygon
(c) concave polygon
(d) convex polygon.
Answer: irregular polygon.
Question 65. Sum of all angles of a regular polygon having n-sides is
(a) (2n+4) right angles
(b) (2n-2)right angles
(c) (2n - 4) right angles
(d) none of the above.
Answer: (c) (2n - 4) right angles.
Question 66. Sum of all exterior angles of a regular polygon is
(a) 270 degree
(b) 180 degree
(c) 360 degree
(d) 540 degree
Answer: 360 degree.
Question 67. Number of diagonals in a polygon of n-sides are equal to
(a) [n(n-3)] / 2
(b) [n(n-4)] /2
(c) [n(n+3)] / 2
(d) none of the above.
Answer: (a) [n(n-3)] / 2
Question 68. Each exterior angle of a regualr polygon having sides 12 is equal to
(a) 90 degree
(b) 60 degree
(c) 30 degree
(d) none of the above.
Answer: (c) 30 degree.
Question 69. Number of parallel sides of a parallelogram is
(a) 1 pair
(b)2 pair
(c) 3 pair
(d) 4 pair
Answer: (b) 2 pair
Question 70. Sum of interior angles of a pentagon is equal to
(a) 180 degree
(b) 360 degree
(c) 540 degree
(d) 720 degree
Answer: (c) 540 degree.
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