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Please help for one easy geometry question. PLEASE
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3 votes
Please help for one easy geometry question. PLEASE

Please help for one easy geometry question. PLEASE-example-1
User Scaramallion
by
6.2k points

1 Answer

7 votes

Answer:

40pi

Explanation:

Area of a circle:
A = \pi r^2

Shaded area: 2*72° = 144°, which is 0,4 of the total area. (144°/360° = 0,4)

r = 10, according to your picture

->
A = \pi \cdot 10^2 \cdot 0,4 = 40 \pi

User Neam
by
7.4k points
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