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Anita needs to construct ten cones for a class project. How many square feet of material will she need? Use 3.14 for π. Enter your answer in the box.
The diameter is 6 and the slant height is 12. What is the surface area?
The diameter is 6 and the slant height is 12. What is the surface area?
Answers
Answered by
oobleck
the area of each cone will be a = πrs
where r is the radius of the base.
where r is the radius of the base.
Answered by
1165.2
Solving for the lateral surface area of one cone:
LSA = (3.14) (3) [√(12²+3²)] = 116.52 sq ft.
Since she needs 10 cones:
10 * 116.52 sq. ft = 1,165.2 sq ft.
She will need 1,165.2 sq ft of m
LSA = (3.14) (3) [√(12²+3²)] = 116.52 sq ft.
Since she needs 10 cones:
10 * 116.52 sq. ft = 1,165.2 sq ft.
She will need 1,165.2 sq ft of m
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