SSC CPO SI and ASI Model Paper 8

Question : 103 of 200

Marks: +1, -0

Length of the tangent drawn to a circle from a point 29 cm away from center is 21 cm. What is the diameter of that circle?

Solution:

In a triangle OAB,

r = OB =√{ 29^2 - 21^2} = 20 cm

So, the diameter is 2 × 20 = 40 cm.

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