Question

How do I do this please

Answer 1

`\boxed{\sf C = 81.64 \ cm}`

Given:

Radius of circle (r) = 13 cm

To Find:

Circumference of the circle (C)

Explanation:

Circumference of the circle is given as:

`\boxed{ \bold{C = 2\pi r}}`

By substituting value of π & r in the formula we get:

`\sf \implies C = 2 * 3.14 * 13 \\ \\ \sf \implies C = 81.64 \: cm`

`\therefore`

Circumference of the circle (C) = 81.64 cm

Answer 2

C=81.64

Explanation:

C=2(3.14)(13)

C=6.28(13)

C=81.64