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Find the surface area of a cone with a slant height of 12 and a radius of 14. Use 3.14 for pi. Round your answer to the nearest tenth. 1142 1143 1144 1145 please explain!
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Find the surface area of a cone with a slant height of 12 and a radius of 14. Use 3.14 for pi. Round your answer to the nearest tenth.

1142

1143

1144

1145

please explain!

User JEY
by
7.4k points

2 Answers

5 votes
S = πrl + π r²
r = 14
l = 12
S =1142,96≈1143
User Orly
by
7.6k points
5 votes
Surface area of cone = πr(l + r)
= 3.14×14(14+12)
= 3.14 × 14 × 26
= 1142.96
= 1143
User Jitesh Mohite
by
7.7k points
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