ICSE Board Practice

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ICSE Grade VIII - Quadrilaterals

Question 1

1.	Name all quadrilaterals whose all angles are equal
	square,rhombus square,rectangle rectangle,rhombus parallelogram,square,rhombus,rectangle square,parallelogram

Question 2

2.	In the given figure, ABCD is a parallelogram. AC bisects ∠A & ∠C. Given AC = 12 cm and BD = 8 cm , find AB
	6.21 cm 7.21 cm 5.21 cm 9.21 cm 8.21 cm

Question 3

3.	KLMN is a rhombus in which ∠K = 120° .   LN     is the diagonal. Then △KLM is
	an obtuse angled triangle None of these an isosceles triangle an equilateral triangle a scalene triangle

Question 4

4.	In the figure given below, BCDE is a rhombus. Find the values of x and y
	x = 54.77° , y = 54.77° x = 53.77° , y = 53.77° x = 57.77° , y = 57.77° x = 55.77° , y = 55.77° x = 56.77° , y = 56.77°

Question 5

5.	In the figure given below, PQRS is a rectangle. Find the values of x and y
	x = 62.94° , y = 123.88° x = 58.94° , y = 119.88° x = 61.94° , y = 122.88° x = 60.94° , y = 121.88° x = 59.94° , y = 120.88°

Question 6

6.	The sides of the quadrilateral are
	OP     ,   PQ     ,   QR     ,   RO       OQ     ,   QR     ,   RP     ,   PO       OP     ,   PR     ,   RS     ,   SO       OP     ,   PQ     ,   QS     ,   SO       OQ     ,   QP     ,   PR     ,   RO

Question 7

7.	Which of the following is a regular polygon with four sides?
	trapezium rhombus parallelogram rectangle square

Question 8

8.	In parallelogram CDEF , diagonals   DF     and   CE     intersect at G . Then DE   =
	EF CE DF FC CD

Question 9

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

Question 10

10.	N, O, P are the mid-points of the sides of triangle CDE. If the perimeter of the △CDE is 52 cm , the perimeter of △NOP is
	27.0 cm 25.0 cm 26.0 cm 24.0 cm 28.0 cm

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