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the volume of a trapezoidal prism is equal to the height times the base area of the trapezoid.

First you find the area of trapezoid h(a+b)/2

h is the height of the trapezoid, not the height of the prism

a is the length of the top

b is the length of the bottom

Then you find the volume of the trapezoidal prism with this formula H*h(a+b)/2

H is the height of the prism.

Multiply H by the area of the trapezoid that you found in step one.

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โˆ™ 2010-03-30 01:06:38
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Q: Formula for volume of a trapezoidal prism?
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