Question

Work out the circumference of this circle.

Take pie to be 3.142 and give your answer to 1 decimal place.
Radius=4cm

Answer 1

25.1 cm

Explanation:

The circumference is given by ...

C = 2πr

Filling in the given numbers, we find the circumference to be ...

C = 2(3.142)(4 cm) = 25.136 cm ≈ 25.1 cm