Question

30 POINTS!

Find the area of the shaded regions.

Answer 1

84.78cm²

Explanation:

Angle at the centre:

360 - 90 = 270

Area:

(270/360) × pi × r²

(3/4) × pi × 6²

27pi cm²

27(3.14) = 84.78 cm²

Answer 2

84.82 or 27pi

Explanation:

Area of a circle is A=pir^2

so the area of the whole circle would be 6^2pi

so area is 36pi but only 3/4 is shaded so

36pi*3/4=27pi

27*pi≈84.82