Question

# The difference between the circumference and radius of a circle is 37 cm. The area of the circle is  (a) 111cm2(b)184cm2(c)154cm2(d)259cm2

Solution

## Taking pi as 3.14 will give an approximate answer. You can do it by taking 227 as well Let the radius be r cm Circumference will be, 2πr=2×3.14×r=6.28×r According to the question   6.28r- 1r =37 5.28r = 37 →r=375.28 →r=approx.7cm ∴Area=πr2=3.14×7×7=154 Answer= 154 cm2 MathematicsSecondary School Mathematics XStandard X

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