radius and height of cone in the ratio 1:3 and volume 1078 cm. find diameter
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Answered by
7
let the radius is x and the height of cone is 3x
now we know V= ⅓πr²h
so, 1078=⅓πx²3x
x³=343.138057
so the x is ³√343.138057
approx. 7 unit
=> the diameter is 2×7=14 unit
now we know V= ⅓πr²h
so, 1078=⅓πx²3x
x³=343.138057
so the x is ³√343.138057
approx. 7 unit
=> the diameter is 2×7=14 unit
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2
Here is ur answer
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Nehaparmar:
Sorry it's my mistake
answer is 14
d= R×2
so 7×2
14
it's okay
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