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1
Answer:
Given,
Vol. of cone=12936cm^3
d=42cm
r=42/2=21cm
Vol. of cone=1/3πr^2h
12936=1/3×22/7×21×21×h
h=28cm
l^2=h^2+r^2
l^2=28^2+21^2
l^2=784+441
l^2=1225
l=35cm
CSA of cone=πrl
=22/7×21×35
=2310cm^2
Answered by
1
Answer:
l = 35 cm
TSA = 3696 cm
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