Question

I don’t know how to solve this

Answer 1

Answer:

see explanation

Step-by-step explanation:

The perimeter is the length of all the sides in the figure.

The arc of the semi- circle is included in this.

length of arc = $\frac{1}{2}$πd ← d is the diameter

here d = 8, hence

arc = $\frac{1}{2}$π × 8 = 4π ← exact length

Perimeter = 10 + 8 + 10 + 4π ≈ 40.57 in ( nearest hundredth )