CBSE Board Practice

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CBSE Grade VIII - Understanding Quadrilaterals

Question 1

1.	One angle of a parallelogram measures A = 53.13° . Find the measure of each of its remaining angles.
	B = 128.87° , C = 55.13° , D = 128.87° B = 124.87° , C = 51.13° , D = 124.87° B = 127.87° , C = 54.13° , D = 127.87° B = 126.87° , C = 53.13° , D = 126.87° B = 125.87° , C = 52.13° , D = 125.87°

Question 2

2.	Sum of the interior angles in a nonagon is
	1260° 1270° 1275° 1290° 1265°

Question 3

3.	PQRS is a rhombus in which ∠P = 99° .   QS     is the diagonal. Then △PQR is
	a scalene triangle an obtuse angled triangle an isosceles triangle None of these an equilateral triangle

Question 4

4.	Find the missing angle in the given quadrilateral
	69.64° 84.64° 54.64° 59.64° 64.64°

Question 5

5.	In rhombus JKLM , diagonals   JL     and   KM     intersect at N . Then △NJK ≇
	△NLK △NLM △NJM △MJK

Question 6

6.	In rhombus JKLM , diagonals   JL     and   KM     intersect at N . Then △NLK ≇
	△NJM △NLM △MJK △NJK

Question 7

7.	In parallelogram KLMN , diagonals   LN     and   KM     intersect at O . Then   MN       ∥
	KM       LN       NK       LM       KL

Question 8

8.	In kite HIJK ,   HJ     and   IK     are diagonals. Then IJ =
	JK HJ HI KH IK

Question 9

9.	The exterior angles of the triangle are
	∠EDB , ∠FBC , ∠GCD ∠CDA , ∠DAB , ∠EBD ∠FEC , ∠GCD , ∠HDE ∠DCA , ∠EAB , ∠FBC ∠DEB , ∠EBC , ∠FCE

Question 10

10.	The value of each exterior angle in an n-sided regular polygon is
	( 360 n ) ° [ (2n - 4) x 180 n ] ° ( n 360 ) ° [ (2n - 4) x 90 n ] °

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