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What is the area of the region between two concentric circles, if the length of a chord of the outer circle touching the inner circle at a particular
Question

What is the area of the region between two concentric circles, if the length of a chord of the outer circle touching the inner circle at a particular point of its circumference is 14cm?

A.

154 square cm

B.

144 square cm

C.

132 square cm

D.

Cannot be determined due to insufficient data

Correct option is A


Given:
Length of the chord = 14 cm.
Since the chord is bisected by the radius of the inner circle at the point of tangency, each half of the chord is 7 cm.
the radius of the inner circle, half the chord, and the radius of the outer circle:



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