IfeomaU309784 IfeomaU309784
  • 25-10-2022
  • Mathematics
contestada

find the area of the semicircle round to the nearest tenth use 3.14 for pi do not include units with your answer 12 in

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GurnaazY286986 GurnaazY286986
  • 25-10-2022

226.08

1) Since the area of the semicircle is half the circle area, then we can write:

[tex]S=\frac{1}{2}\cdot\pi\cdot r^2[/tex]

2) So we can plug into that the size of that radius:

[tex]\begin{gathered} S=\frac{1}{2}\cdot\pi\cdot(12)^2 \\ S=\frac{1}{2}\cdot\pi\cdot144 \\ S=72\pi\Rightarrow S=72\times3.14\Rightarrow S=226.08 \end{gathered}[/tex]

3) Hence, the area of that semicircle is 226.08 in²

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