Chapter 8 Polygons and Area
Section 7 Circumference and Area of Circles
Example 1: Find the Circumference of a Circle Find the circumference of the circle.
Checkpoint: Find the circumference of a Circle Find the circumference of the circle. Round your answer to the nearest whole number.
Example 2: Find the Area of a Circle Find the area of the circle.
Example 3: Use the Area of a Circle Find the radius of a circle with an area of 380 square feet.
Checkpoint: Find the Area of a Circle Find the area of the circle Checkpoint: Find the Area of a Circle Find the area of the circle. Round your answer to the nearest whole number.
Example 4: Find the Area of a Sector Find the area of the blue sector.
Checkpoint: Find the Area of a Sector
Checkpoint: Find the Area of a Sector
EXIT SLIP