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Question

Two parallel lines touch a circle at points A and B respectively. If the area of the circle is 25 π cm2, then AB is____________.



Your Answer
A

5

Your Answer
B

8

Correct Answer
C

10

Your Answer
D

25


Solution

The correct option is C

10


Area of the circle = 25π

π r2=25π

r2=25

r=5 cm

Distance between two parallel lines = diameter, hence AB=10 cm 

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