Question

the circumference of the larger circle is about 18.8 centimeters and the circumference of the smaller circle is about 6.3 centimeters. Find the approximate diameter of the smaller circle

Answer 1

Circumference = 2 x pi x r

So you have:

6.3 cm = 2 x pi x r

(6.3cm) / 2pi = r

r = 1.o

therefore: d = 2