ICSE Board Practice

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ICSE Grade IX - Quadrilaterals

Question 1

1.	In rhombus LMNO , diagonals   LN     and   MO     intersect at P . Then ∠PMN ≠
	∠LMP ∠OPN ∠POL ∠NOP

Question 2

2.	In kite HIJK ,   HJ     and   IK     are diagonals. Then △JIH ≅
	△LJI △JKH △LKH △KIH △KIJ

Question 3

3.	In the adjoining figure, equilateral  △NMO surmounts square  KLMN. If  MOK = x°, find the value of x.
	43° 44° 47° 45° 46°

Question 4

4.	In the given figure, JKLM is a parallelogram. KM is the diagonal such that   JM = KM = KL . Given ∠J = 65° , find ∠MKL
	51° 50° 48° 52° 49°

Question 5

5.	In rhombus FGHI , diagonals   FH     and   GI     intersect at J . Then ∠GJF ≠
	∠IFG ∠HJG ∠IJH ∠FJI

Question 6

6.	In kite IJKL ,   IK     and   JL     are diagonals. Then LI =
	IJ JL IK JK KL

Question 7

7.	In the given figure, HIJK is a parallelogram. The bisector of the angles H, I, J & K intersect at S, T, U & V to form a quadrilateral. Find ∠UVS
	88° 92° 90° 89° 91°

Question 8

8.	Two adjacent angles of a parallelogram BCDE are in the ratio 16 : 20. Find the measure of each of its angles.
	B = 80° , C = 100° , D = 80° , E = 100° B = 78° , C = 102° , D = 79° , E = 101° B = 79° , C = 98° , D = 81° , E = 102° B = 82° , C = 99° , D = 78° , E = 101° B = 81° , C = 99° , D = 82° , E = 98°

Question 9

9.	In rhombus IJKL , diagonals   IK     and   JL     intersect at M . Then △MKJ ≇
	△MIL △MKL △MIJ △LIJ

Question 10

10.	In rhombus JKLM , diagonals   JL     and   KM     intersect at N . Then   KL     ∥
	JK       LM       KM       MJ

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