2. First you want to find the area of each circle so you use the formula . So you get which equals 16 Next you want to find the area of each triangle so you use A= 1/2bh. The triangle you can form is an equilateral with sides of 8. So you get 1/2 x 8 x which equals .
3. Next you want to find the area of each sector that is formed by the triangle so you get 60 degrees/360 degrees x which can be reduced to 2degrees/3 degrees x which equals / 3. So the shaded area in between the circles is the difference between the area of the triangle and the sum of the three sectors. So you get – 3( /30 which equals – .
