Question

Ken's landscape gardening business makes odd shapes lawns the include semicircles. Find the length of the edging material needed to border the lawn design. Use 3.14 for pi. The radius of the flowerbed is 2.5 m.

Answer 1

Answer:

$L_s=7.85\ m$

Step-by-step explanation:

Length Of Semicircles

The length of a circle or radius r is

$L=2\pi r$

A semicircle has half this length:

$L_s=\pi r$

The radius of the flowerbed is 2.5 m, thus the length of the edging material needed to border the lawn design is

$L_s=\pi (2.5)=(3.14)(2.5)=7.85\ m$

$\boxed{L_s=7.85\ m}$