Question

Find the area of the shaded portion intersecting between the two circles. Show all work for full credit.
https://wca.sooschools.com/media/g_geo_ccss_2016/8/groupi59.gif
My answer-
The area of triangle + area of shaded region = area of the sector
Since it forms an equilateral triangle. therefore the angles would be 60 each
Therefore shaded area= area of sector - area of triangle
Area if equilateral triangle = (√3) a²/4
Putting the value of a = 4 we get area 6.93
Area of the area of sector angle 60 is:
[0/2]r² where 0 = π/3
Putting the value at π²/(9*2)
=π²/18
Therefore area of shaded region: π²/18-6.93
Teacher said-
the area of the triangle is correct but leave it with pi in it, the rest has problems with the way you set it up

Answer 1

@Vocaloid