Question

John is putting a fence around his garden that is shaped like a half circle and a rectangle.

A rectangle has a length of 14 feet and width of 7 feet. A semicircle with diameter of 7 feet is on top of the rectangle.

How much fencing will John need? Use StartFraction 22 over 7 EndFraction for Pi.
32 ft
39 ft
46 ft
57 ft

Answer 1

Answer: C-46

Explanation:

It's is right on edge

Answer 2

46 feet

Explanation:

`a=14\,ft\\b=7\,ft\\d=7\,ft\\\\\\L=\frac12\cdot\pi d+(2a+2b-d)\\\\ L=\frac12\cdot\frac{22}7\cdot7+2\cdot14+2\cdot7-7=11+28+14-7=46`