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memeE15
10.11.2020 •
Mathematics
Please help me. i don’t know how to do this at all
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Ответ:
B. 171.74 cm²
Step-by-step explanation:
Area of a sector =
.
Where,
radius (r) = 8.7 cm
Plug in the values into the formula
Area of sector =![\frac{260}{360} \times \pi 8.7^2](/tpl/images/0925/7056/74ab2.png)
Area of sector =![\frac{260 \times \pi 75.69}{360}](/tpl/images/0925/7056/6fe47.png)
Area of sector = 171.74 cm² (approximated)