Find the total surface area of cone and its slant height is 21cm and diameter of its base is 24cm.
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Answers
Answered by
16
Total surface area=πr(l+r)
d=2r
24=2r
→12cm=r
→l=21cm
Keeping the value in formula=>πr(l+r)
22/7×12(21+12)
22/7×12×33
1244.57cm²
d=2r
24=2r
→12cm=r
→l=21cm
Keeping the value in formula=>πr(l+r)
22/7×12(21+12)
22/7×12×33
1244.57cm²
Answered by
16
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