ICSE Board Practice

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ICSE Grade IX - Quadrilaterals

Question 1

1.	The opposite sides of the quadrilateral are
	HI     &   JK     ,   IJ     &   KH       HJ     &   KI     ,   JK     &   IH       HJ     &   IK     ,   JI     &   KH       HI     &   KL     ,   IK     &   LH       HI     &   JL     ,   IJ     &   LH

Question 2

2.	Which of the following properties apply for a rectangle ?
	a) Opposite angles are equal b) Adjacent sides are equal c) Diagonals bisect each other d) Opposite sides are parallel e) Diagonals are equal f) Opposite sides are equal g) Adjacent angles are equal
	{b,d} {b,a} {b,e,f} {a,c,d,e,f,g} {b,c}

Question 3

3.	In the given figure, KLMN is a kite whose diagonals intersect at O . If ∠LMN = 67.38° and ∠MNK = 97.98° , calculate ∠OKL and ∠MOL .
	x = 46.33° , y = 88° x = 48.33° , y = 90° x = 50.33° , y = 92° x = 49.33° , y = 91° x = 47.33° , y = 89°

Question 4

4.	In parallelogram CDEF , diagonals   DF     and   CE     intersect at G . Then △FCD   ≅
	△CDG △DEF △EFC △EFG △CDE

Question 5

5.	In rhombus NOPQ , diagonals   NP     and   OQ     intersect at R . Then △RPO ≇
	△RNQ △QNO △RPQ △RNO

Question 6

6.	Identify the figure below
	circle parallelogram square rhombus rectangle

Question 7

7.	In parallelogram DEFG , diagonals   EG     and   DF     intersect at H . Then ∠EFG   =
	∠DEH ∠GDE ∠DEF ∠FGD ∠FGH

Question 8

8.	In rhombus IJKL , diagonals   IK     and   JL     intersect at M . Then ∠KLI =
	∠JKL ∠IJM ∠IJK ∠LIJ

Question 9

9.	The figure formed by successively joining the mid-points of the sides of a rhombus is
	rhombus parallelogram square rectangle

Question 10

10.	Find the missing angle in the given trapezium
	137.63° 132.63° 157.63° 142.63° 127.63°

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