Find the area of this semi-circle with diameter 18 Give your answer rounded to 2 DP.

asked May 27, 2022 94.1k views

4 votes

Find the area of this semi-circle with diameter 18
Give your answer rounded to 2 DP.

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Explanation:

diameter(d): 18

radius(r): 18 ÷ 2 = 9

area of a semi-circle:

$\frac{\pi {r}^(2)}{2}$

$= (\pi * 9 * 9)/(2) = 127.23$

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