Find the total surface area of cone whose radius is 2r and slant height is 1/2
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Answered by
2
R = 2r
l = 1/2
TSA of a cone = πR(l+R)
= π x 2r (1/2 + 2r)
= π x 2r (1 + 4r/2)
= πr (1 + 4r)
Hence, the TSA of cone is πr (1 + 4r).
MARK BRAINLIEST!!
l = 1/2
TSA of a cone = πR(l+R)
= π x 2r (1/2 + 2r)
= π x 2r (1 + 4r/2)
= πr (1 + 4r)
Hence, the TSA of cone is πr (1 + 4r).
MARK BRAINLIEST!!
Answered by
0
total surface area of a cone = πr(l+r)
given, r=2r
l = 1/2
=> TSA = 22/7* 2r ( 1/2 + 2r)
= 22+88r/7 sq.units
given, r=2r
l = 1/2
=> TSA = 22/7* 2r ( 1/2 + 2r)
= 22+88r/7 sq.units
sharmilafareedp30hcc:
then it will be πr(l+4r)
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