An equilateral triangle with side lengths equal to units is inscribed in a circle.

Question

Revolt · Accepted Answer

Half a side length of the equilateral triangle is units, so the apothem is units long and the radius of the circle is units long.:

12

Each segment of the circle has an area equal to the difference between the areas of the sector and triangle, or (π − ) units2.:

48

Each segment of the circle has an area equal to the difference between the areas of the sector and triangle, or (π − ) units2.:

36

Area of Composite Figures