What is the volume of a cone
What is the volume of this cone with a height of 5 and a radius of 3.
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| A cone |
Word Problem
A bridge is built across a river. One quarter of the bridge is over the left bank of the river and one third of the bridge is over the right bank. The river is 120 m wide. How long is the bridge?
To find the volume of a cone you need to know that it is a third of a cylinder and a cylinder's volume is πr^2 * h (pi * r squared * h) where r is its radius and h is its height.
ReplyDeleteObviously, if a cone's volume is 1/3 of a cylinder's, then you just do 1/3 of the cylinders volume.
Therefore, the volume of a cone is '1/3 * pi * r squared * height'.