find the total surface area of a cone whose radius is r/2 and slant height is 2l
Answers
Answered by
3
Answer:
Step-by-step explanation:
radius=r/2,
slant height = 2l.
total surface area of cone =πr(l+r)
=22/7 ×r/2(r/2 + 2l)
=11r/7[(r+4l)/2]
= [11r(4l+r)]/14
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Answered by
1
Answer:
44lr +11r²/14
Step-by-step explanation:
11r/7*4l+r/2
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