Question

Find the arc length of the semicircle.

Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.

Answer 1

18.852

Explanation:

Formula to find the arc of semi circle is :

Arc length = π r

Given that,

diameter ⇒ 12

So, the radius will be,

Radius ⇒ 12 / 2

⇒ 6

Let us solve now.

Arc length = π r

= 3.142 × 6

= 18. 852