## What is the formula for perimeter of a semicircle?

Perimeter of a Semicircle

The formula for a circle’s circumference, C, is C = 2 * pi * r, where r is, again, the circle’s radius.

A semicircle is half a circle, however, so we’ll need to divide the formula for perimeter by two just like we did the formula for area.

The perimeter P = pi * r.

## How do you find the perimeter of a semicircle and area?

How To Find The Area And Perimeter Of Semi Circle? / Maths

## How do you find the perimeter of a semicircle Khan Academy?

Finding the perimeter of a semi-circle –

## How do you find the perimeter of a triangle and semicircle?

Perimeter of Semicircles around Triangle –