CPM Homework Help : MC2 Problem 6-41

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

6-41.

Find the area of the shaded portion of each circle.

Hint (a):
Remember the area of a circle is $r^2π$ .
More Help 1 (a):
To find the area of the entire circle, substitute $1$ for $r$ : Area $=(1^2)π$
More Help 2 (a):
Since only half the circle is shaded, we only need half of the entire area calculated. Therefore, divide your answer by $2$ .
Answer (a):
It is about $1.57$ square units.

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

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