91Ó°ÊÓ

Find the surface area of the right cone. A right cone has a diameter of 11.2 feet and a height of 9.2 feet.

In Exercises \(3-10,\) Find the indicated measure. (See Examples 1 and 2 .) exact circumference of a circle with a diameter of 5 inches

In Exercises \(5-8,\) \(\square\)nd the indicated measure. (See Example 2 .) A pyramid with a rectangular base has a volume of 480 cubic inches and a height of 10 inches. The width of the rectangular base is 9 inches. Find the length of the rectangular base.

Find the indicated measure. radius of a circle with an area of 380 square inches

Find the volume of the cone. A cone has a diameter of 11.5 inches and a height of 15.2 inches.

Find the indicated measure. diameter of a circle with an area of 12.6 square inches

Find the indicated measure. diameter of a circle with an area of 676\(\pi\) square centimeters

Give an example of a pyramid and a prism that have the same base and the same volume. Explain your reasoning.

Find the indicated measure. About \(210,000\) people live in a region with a 12 -mile radius. Find the population density in people per square mile.

Find the measure of a central angle of a regular polygon with the given number of sides. Round answers to the nearest tenth of a degree, if necessary. 10 sides