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Pearson Geometry Common Core, 2011

PG

Pearson Geometry Common Core, 2011 View details

8. Perimeter, Circumference, and Area

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Exercise 24 Page 65

Use that A=π r^2 to find the area.

9/64π in.^2

Practice makes perfect

To find the area of a circle, we need the radius of the circle. We know that this circle has a diameter of 34inches. By dividing the diameter by 2, we can find the radius of the circle. r=d/2 ⇒ r&=.3 /4.in./2 r&= 3/8 in. Now, we are able to find its area.

A=π r^2

r= 3/8

A=π*( 3/8)^2

(a/b)^m=a^m/b^m

A=π*3^2/8^2

Calculate power

A=π*9/64

Multiply

A=9/64π

The area is 964π inches^2.

Subchapter links

Lesson Check p.64

Practice and Problem-Solving Exercises p.64-67

Standardized Test Prep p.67

Mixed Review p.67