### Home > MC2 > Chapter 6 > Lesson 6.1.4 > Problem 6-41

6-41.

Find the area of the shaded portion of each circle.

Remember the area of a circle is

.To find the area of the entire circle, substitute

for : AreaSince only half the circle is shaded, we only need half of the entire area calculated. Therefore, divide your answer by

. It is about

square units.

See part (a). This time only one-fourth of the circle is shaded.