Circumference is the distance all the way around a circle. The drawing gives a radius of 240 mm. Use C = 2 x pi x r.

Tip 1

Find the radius marked R 240 on the drawing.

Tip 2

Multiply the radius by 2 and then by pi.

How to solve it

Write the formula: C = 2 x pi x r.

Substitute r = 240 mm: C = 2 x pi x 240.

C = 1,507.96 mm.

Round to the nearest millimetre.