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CAT-2005-Previous Years Paper

Question
24 out of 30
 

P, Q, S and R are points on the circumference of a circle of radius r, such that PQR is an equilateral triangle and PS is a diameter of the circle. What is the perimeter of the quadrilateral PQSR?



A
B

C
D

Ans. A

Here, cos30° =

From the diagram cos120° =

a2= 3x2

x = r

Hence, the circumference will be 2r

Hence, answer is (a).

CAT-2005-Previous Years Paper Flashcard List

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