CBSE Board Practice

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CBSE Grade VIII - Understanding Quadrilaterals

Question 1

1.	In rhombus ABCD , diagonals   AC     and   BD     intersect at E . Then ∠CDE ≠
	∠DEC ∠EDA ∠EBC ∠ABE

Question 2

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

Question 3

3.	In the adjoining figure, PQRS is a rhombus and △TSR is an equilateral triangle. T and P are on opposite sides of  RS. If ∠PQR = 49.4°, find the values of  x  and  y .
	x = 34.3° , y = 29° x = 36.3° , y = 31° x = 35.3° , y = 30° x = 37.3° , y = 32° x = 33.3° , y = 28°

Question 4

4.	In kite LMNO ,   LN     and   MO     are diagonals. Then △PML ≅
	△OMN △PNM △OML △PNO △POL

Question 5

5.	In rhombus EFGH , diagonals   EG     and   FH     intersect at I . Then △HEF ≅
	△GHE △IEF △FGH △EFG

Question 6

6.	In rhombus GHIJ , diagonals   GI     and   HJ     intersect at K . Then GK =
	IK HK JG JK

Question 7

7.	In the adjoining figure, ABCD is a kite in which AB = DA , BC = CD and the diagonals   BD     and   AC     intersect at   O . If ∠OCD = 26.42° and ∠ABO = 65.56°, find the measure of each of the angles marked a,b,c,d and e.
	a = 63.58° , b = 25.44° , c = 64.56° , d = 65.58° , e = 26.42° a = 63.58° , b = 24.44° , c = 65.56° , d = 63.58° , e = 26.42° a = 63.58° , b = 25.44° , c = 65.56° , d = 63.58° , e = 26.42° a = 63.58° , b = 25.44° , c = 64.56° , d = 65.58° , e = 24.42° a = 63.58° , b = 25.44° , c = 64.56° , d = 63.58° , e = 26.42°

Question 8

8.	Name all quadrilaterals whose opposite sides are parallel
	rectangle,rhombus square,rhombus parallelogram,square,rhombus,rectangle square,parallelogram square,rectangle

Question 9

9.	The name of the quadrilateral is
	MNPQ MNOQ MNOP MONP MOPN

Question 10

10.	In rhombus ABCD , diagonals   AC     and   BD     intersect at E . Then △CDA ≅
	△BCD △EAB △DAB △ABC

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