Question

Study the figure.

Find the area of the shaded region. Use 3.14 for it and round your answer to the nearest hundreth.

Answer 1

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.

Explanation:

r - radius of the circle

a - corner of the circular sector

S - surface