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Question-1
Figures of same size and same shape are

(A) Congruent	(B) Similar
(C) Both 1 and 2	(D) None of these

Question-2 CP and CQ are tangents to a circle with centre O. ARB is another tangent touching the centre at R. If CP = 11 cm and BC = 7 cm, then the length of BR is

(A) 6 cm	(B)5 cm
(C)4 cm	(D)8 cm

Question-3
All ________ triangles are similar.

(A) Isosceles	(B) Equilateral
(C) Scalene	(D) None of these

Question-4
The length of the diagonal of a rectangle is 10 cm. The area of its circumscribed circle is

(A) 10 π cm²	(B) 25 π cm²
(C) 100 π cm²	(D) 50 π cm²

Question-5
Which of the following is not true?

(A) All circles are similar	(B) All squares are similar
(C) All equilateral triangles are similar	(D) All quadrilaterals are similar

Question-6
A tangent PT at a point T of a circle of radius 8 cm meets a line through the centre O at a point P so that OP = 17 cm. Then, the length of PT is

(A) 12 cm	(B) 8.5 cm
(C) 15 cm	(D) 10 cm

Question-7
Two circles touch externally at a point P. From a point T on a common tangent PT, tangent segments TA and TB are drawn to the two circles. Then TA =

(A) PB	(B) TB
(C) OB	(D) 2 TB

Question-8
The areas of two similar triangles are 81 cm² and 49 cm² respectively. If the altitude of the first triangle is 6.3 cm then the corresponding altitude of the other is

(A) 4.9 cm	(B) 9.4 cm
(C) 49 cm	(D) 9.2 cm

Question-9
The areas of two similar triangle are 121 cm² and 64 cm² respectively. If the median of the first triangle is 12.1 cm, the corresponding median of the other is

(A) 9.9 cm	(B) 10.2 cm
(C) 8.8 cm	(D) 6.6 cm

Question-10

(A) 25 : 4	(B) 4 : 25
(C) 4 : 9	(D) 9 : 4

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Std 10

ICSE/ISC

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Circumference and Area of a Circle
Heights and Distances
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Trignometry
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