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Surface Area of Cones. ADDITION TO DIAGRAM – NEW VOCAB The slant height of a right cone is the distance from the vertex to any place on the perimeter.

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Presentation on theme: "Surface Area of Cones. ADDITION TO DIAGRAM – NEW VOCAB The slant height of a right cone is the distance from the vertex to any place on the perimeter."— Presentation transcript:

1 Surface Area of Cones

2 ADDITION TO DIAGRAM – NEW VOCAB The slant height of a right cone is the distance from the vertex to any place on the perimeter of the circular base.

3

4 Example 1 Find the surface area of a right cone with radius 9 in and slant height 5 in. Leave your answer in terms of .

5 Example 2 Find the surface area of a right cone with a diameter of 6 ft and a slant height of 41 ft. Round your answer to the nearest hundredth.

6 Example 3 Find the surface area of the right cone. r 5m 3m

7 Example 4 Work backwards to solve for the missing information. Find the slant height of a right cone with a radius of 13 yards and surface area of yd 2.

8 Example 5 Work backwards to solve for the missing information. Find the radius of a right cone where the diameter is equal to the slant height and the surface area is 300  cm 2.


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