Find the total surface area of …
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Posted by Shantanu Sonawane 3 years, 9 months ago
- 1 answers
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Yogita Ingle 3 years, 9 months ago
given
slant height = 2l
radius = 2r
total surface area of the cone = 2π*radius(radius+slant height)
=2π*2r[2r+2l]
= 4πr 2(r+l)
= 8πr (r +l) sq units
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