Question

The radius of a circle is 1.4 cm. Find the circumference \textit{to the nearest tenth}to the nearest tenth.

Answer 1

8.8 cm

Explanation:

The circumference of a circle of radius r is C = 2(pi)r.

In the case where the radius is 1.4 cm, the circumference is:

C = 2(3.14)(1.4 cm) = 8.792, which is 8.8.