Question

3. The circumference of a circle is 123.2cm. Calculate
a. radius of the circle
b. area of the circle
c. the effect o the area of
the circle if the radius is doubled.
Please explain step by step. ​

Answer 1

2πr=123.2

r=123.2/2π

Area = π[123.2/2π]²

Answer 2

Step-by-step explanation:

a. 123.2/2=61.6

b. 22/7×61.6×61.6=11925.76

c. sorry don't know