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Area

Area

Example 1

What is the area of the circle with a radius of 7 cm?

Example 2

What is the area of the circle below?

Example 3

What is the area of the circle below?

Example 4

A sector has a central angle of 73° and a radius of 3. What is the area of the sector?

Example 5

A circle has an area of 6.28 square kilometers. What is the circumference of the circle?

Example 6

In the National Basketball Association, NBA, the diameter of the center circle is 12 feet. In the International Basketball Federation, FIBA, the center circle's diameter is 11.81 feet. How much larger is the area of the NBA center circle as compared to the area of the FIBA center circle?

Example 7

On a basketball court, the restricted area is a semicircle beneath the basket. In the NBA, the restricted area has a radius of 4 feet. In the NCAA (college basketball), the area has a radius of 3 feet. How much larger is the restricted area of the NBA compared to that of the NCAA?

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