CBSE Board Practice

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CBSE Grade VIII - Understanding Quadrilaterals

Question 1

1.	Which of the following are true?
	a) A rhombus is a trapezium b) A trapezium is a rhombus c) A rectangle is a square d) A trapezium is a parallelogram e) A parallelogram is a trapezium
	{d,b,a} {a,e} {b,a} {c,e} {c,e,a}

Question 2

2.	In rhombus JKLM , diagonals   JL     and   KM     intersect at N . Then ∠NLM ≠
	∠JNM ∠NJK ∠MJN ∠KLN

Question 3

3.	Find the number of sides in a regular polygon if each exterior angle is 18°
	20 23 19 21 17

Question 4

4.	Two angles of a quadrilateral are of measure 80.28° and 66.1° respectively and the other two angles are equal. Find the measure of each of the equal angles.
	106.81° 107.81° 108.81° 104.81° 105.81°

Question 5

5.	In kite BCDE ,   BD     and   CE     are diagonals. Then DE =
	CE CD BC EB BD

Question 6

6.	How many diagonals does a decagon have?
	32 35 36 34 37

Question 7

7.	Two adjacent angles of a parallelogram NOPQ are in the ratio 3 : 3. Find the measure of each of its angles.
	N = 89° , O = 88° , P = 91° , Q = 92° N = 92° , O = 89° , P = 88° , Q = 91° N = 90° , O = 90° , P = 90° , Q = 90° N = 88° , O = 92° , P = 89° , Q = 91° N = 91° , O = 89° , P = 92° , Q = 88°

Question 8

8.	In kite MNOP ,   MO     and   NP     are diagonals. Then MN =
	OP NP PM MO NO

Question 9

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

Question 10

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

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