CBSE Board Practice

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CBSE Grade VIII - Understanding Quadrilaterals

Question 1

1.	Name all quadrilaterals whose diagonals bisect each other
	square,kite square,parallelogram square,rhombus rectangle,rhombus parallelogram,square,rhombus,rectangle

Question 2

2.	Which of the following have point symmetry ?
	a) trapezium b) parallelogram c) quadrilateral d) square e) rectangle f) rhombus
	{a,c,e} {b,d,e,f} {c,d} {a,f,b} {a,b}

Question 3

3.	The number of diagonals in a regular polygon with n sides is
	( n ) ( n − 1 ) 2 ( n ) ( n + 3 ) 2 ( n ) ( n − 2 ) 2 ( n ) ( n + 2 ) 2 ( n ) ( n − 3 ) 2

Question 4

4.	PQRS is a rhombus in which ∠P = 120° .   QS     is the diagonal. Then △PQR is
	an obtuse angled triangle an isosceles triangle an equilateral triangle a scalene triangle None of these

Question 5

5.	In the figure given below, GHIJ is a rhombus. Find the values of x and y
	x = 60.02° , y = 60.02° x = 59.02° , y = 59.02° x = 56.02° , y = 56.02° x = 57.02° , y = 57.02° x = 58.02° , y = 58.02°

Question 6

6.	Identify the figure below
	quadrilateral pentagon nonagon heptagon triangle

Question 7

7.	Which of the following figures is a regular quadrilateral?
	square trapezium parallelogram rhombus rectangle

Question 8

8.	The value of the interior angle in a regular polygon when the exterior angle is given
	180°- (exterior angle) 90°+ (exterior angle) 180°+ (exterior angle) 360°- (exterior angle)

Question 9

9.	Identify the figure below
	pentagon hexagon quadrilateral circle nonagon

Question 10

10.	Which of the following statements are true?
	a) Every square is a rectangle b) Every parallelogram is a rectangle c) Every rectangle is a parallelogram d) Every rectangle is a rhombus e) Every rhombus is parallelogram
	{b,d,e} {b,a,c} {a,c,e} {d,c} {b,a}

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