Question

what is the area of a circle of which the difference between the circumference and its radius 37 cm

Answer 1

Answer:

Step-by-step explanation:

Circumference of the circle = 2*pi*r = 2 * 3.14 *r = 6.28r.

Where r = radius

Now,

Given difference = 37

6.28r - r = 37

5.28r = 37

r = 7 cm (approx)

Area of circle = pi * r *r = 3.14 * 7 * 7 = 154 sq. cm.

Answer 2

2πr-r = 37
r(2×22/7-1) = 37
r(37/7) = 37
r = 7cm
area = πr^2
= 22/7×49
= 22×7
= 154
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