Question

What is the circumference of the semicircle

Answer 1

Answer:

this answer is attached to the picture

Answer 2

Answer:

$12.56m$

Step-by-step explanation:

$\frac{180}{360} \times 2\pi \: r \\ \frac{1}{2} \times 2 \times \pi \times 4 \\ = 12.56m$