2 Answers

Conrad Scherb · Answer 1 · 2021-07-24T12:51:02+0000

Answer:

The arc length of the semicircle is:
$11 \pi$ , which is approximately 34.5575

Explanation:

Recall that the length of a circumference of radius R is given by:

$length = 2\,\pi \,R$

therefore, the arc length of a semicircle (half of the circle) would be given by half of the previous expression:

$length\,\,of \,\,semicircle= \pi\,R$

So, in our particular case of radius 11, the formula for the arc length of the semicircle becomes:

$length\,\,of \,\,semicircle= \pi\,R\\length\,\,of \,\,semicircle= 11 \pi\\length\,\,of \,\,semicircle= 34.5575$

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