solve urgent?????? .........
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pie × r1 × r1 × h1 + pie × r2 × r2 × h2 = pie × R × R × H
(3136 + 1715) = 56R^2
R^2 = 4851/56
R = 9.3 approx
Diameter = 18.6 cm
(3136 + 1715) = 56R^2
R^2 = 4851/56
R = 9.3 approx
Diameter = 18.6 cm
Rahul1905:
volume of cone 1 + volume of cone 2
= volume of new cone
your calculation is rong
their 176r^2 not 56r^2
why
it is given that the height is 56 cm
but their is pi
where you written pi
i have taken it comman in LHS and then cancled it with rhs
if you take 52 r^2 than answer is rong than the answer is not 9.3
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