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Hatshy [7]
2 years ago
5

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

Mathematics
1 answer:
ANTONII [103]2 years ago
5 0

Step-by-step explanation:

diameter(d): 18

radius(r): 18 ÷ 2 = 9

area of a semi-circle:

\frac{\pi {r}^{2}}{2}

=  \frac{\pi \times 9 \times 9}{2}  = 127.23

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