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Find the lateral area and the surface area of the right cone. Round your nearest answers to the nearest hundredth

Find the lateral area and the surface area of the right cone. Round your nearest answers-example-1
User Verec
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1 Answer

2 votes

Explanation:

Given that,

The height of the cone, h = 24 cm

The radius of the cone, r = 10 cm

The slant height of the cone is :


l=√(h^2+r^2) \\\\l=√(24^2+10^2) \\\\l=26\ cm

The lateral area of the cone is given by :


A=\pi rl\\\\=3.14* 10* 26\\\\=816.4\ cm^2\approx 816\ cm^2

The surface area of the cone is given by :


A=2\pi rh\\\\=2* 3.14* 10* 24\\\\=1507.2 \approx 1507\ cm^2

User Greg Domjan
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