SOLUTION: A conicle candle is to be made from 240 cm3 of wax. If the candles height is three times its diameter, what radius and height should it have to the nearest tenth

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Question 996888: A conicle candle is to be made from 240 cm3 of wax. If the candles height is three times its diameter, what radius and height should it have to the nearest tenth
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39626) About Me  (Show Source):
You can put this solution on YOUR website!
v=h%2Api%2A%28d%2F2%29%5E2
h is height
d is diameter
v is volume
r for radius and understand d=2r.

Description gives v=240 and h=3d.

v=240=2d%2Api%2A%28d%2F2%29%5E2-----first solve for d.

Answer by MathTherapy(10556) About Me  (Show Source):
You can put this solution on YOUR website!

A conicle candle is to be made from 240 cm3 of wax. If the candles height is three times its diameter, what radius and height should it have to the nearest tenth
With r being the radius, we get: r%5E3+=+40%2Fpi

Radius, or r+=+root%283%2C+%2840%2Fpi%29%29, or 2.33508865 ≈ highlight_green%282.3%29 cm