Question

Three sectors of circle of radius 7cm, making angles 60° , 80° and 40° at the centre are shaded. Find the area of shaded region​

Answer 1

we know that area of individual angles=area of total angle

total angle=40+80+60=180

we know that 180 is half of a circle

and we also know that area of half a circle is πr²/2

r=7

therefore are is

=πr²/2

=22*7*7/7*2

=77cm²

Hope this helps

:)