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Sagot :
Answer:
- 100.48 cm² (Option 2)
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Step-by-step explanation:
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We know,
[tex]{\longrightarrow \qquad \boldsymbol{\pmb{Area_{(semicircle)} = \dfrac{1}{2}( \pi {r}^{2} ) }}}[/tex]
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Where,
- r is the radius of the semicircle. Here, the radius is 8 cm .
- We will take the value of π as 3.14 .
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Now, Substituting the values in the formula :
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[tex]{\longrightarrow \qquad \rm{{Area_{(semicircle)} = \it \dfrac{1}{2} \times 3.14 \times ({8})^{2} }}}[/tex]
[tex]{\longrightarrow \qquad \rm{{Area_{(semicircle)} = \it \dfrac{1}{ \cancel2} \times 3.14 \times \cancel{64} }}}[/tex]
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[tex]{\longrightarrow \qquad \rm{{Area_{(semicircle)} = \it {1} \times 3.14 \times 32 }}}[/tex]
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[tex]{\longrightarrow \qquad \rm{{Area_{(semicircle)} = \it {1} \times 100.48 }}}[/tex]
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[tex]{\longrightarrow \qquad \boldsymbol{ \pmb{Area_{(semicircle)} \approx \it 100.48 }}}[/tex]
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Therefore,
- The area of the semicircle is 100.48 cm² approximately .
Answer:
100.48 cm² ( option 2 )
Step-by-step explanation:
Given:-
- Radius of semicircle :- 8cm
To find:-
- Area of the figure
Solution:-
Area of semi-circle :-
[tex] \frac{1}{2} \pi \: r {}^{2} [/tex]
1/2 × 3.14 × 8²
[tex]100.48 \: cm {}^{2} [/tex]
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