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natka813 [3]
3 years ago
6

Study the figure.

Mathematics
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

So we know the formula to calculate the area of the circular sector:

S=(r^2*π*a)/306°=

(5^2*3.14*40°)/360°= (1000*3.14) /360=8.72cm^2 so the right alternative should be the first one ,A.

Step-by-step explanation:

r - radius of the circle

a - corner of the circular sector

S - surface

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<u><em> Step(i):</em></u>-

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