Area of ENTIRE circle = PI * radius^2
Area = 3.14159 * 3^2
Area =
28.2743338823
square inches
Yellow Area = Circle Area * (75 / 360) =
28.2743338823
*
0.2083333333
Yellow Area =
5.8904862245
square inches
Green Area = Circle Area * (285 / 360) = 28.2743338823 * 0.7916666667
Green Area =
22.3838476578
*****************************************************
Double Check
Yellow Area =
5.8904862245
PLUS
Green Area =
22.3838476578
=
TOTAL =
28.2743338823