find the volume of a cone, if its total surface area is 7128 sq. cm. and radius of base is 28cm. (π =22/7)
total surface area = πr(l+r)
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tsa= πr(l+r)
7128=22/7×28(l+28)
81=l+28
l= 53
volume= 1/3 π×r sq.× l
1/3 × 22/7× 28× 28 × 53
130592/3= 43,530.66
7128=22/7×28(l+28)
81=l+28
l= 53
volume= 1/3 π×r sq.× l
1/3 × 22/7× 28× 28 × 53
130592/3= 43,530.66
vmhetre201:
no this answer is wrong
i checked that i got the Ans
but thank you so much
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