Question

What is the arc length of a semicircle if the diameter is 10?

Answer 1

Given

Diameter- 10

$\therefore$ Radius = 10 ÷ 2 = 5cm

Arc=

$θ= \frac{ l}{r} \\ \\ l = rθ \\ \\ = 5 \times \pi \\ \\ = 5 \times 3.14 \\ \\ = 15.70$

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