SSC CPO SI and ASI Model Paper 1

Question : 124 of 200

Marks: +1, -0

A chord of length 42 cm is drawn in a circle at a distance of 20 cm from the centre. What is the radius of the circle?

Solution:

(1) Let ‘AB’ be the cord, ‘OB’ be theradius and ‘OC’ be the distancefrom center to chord.

Radius, OB

=√{20^2+ [42/2]^2}= 29cm

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