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Posted by **Gabby** on Tuesday, July 28, 2009 at 9:50pm.

A right triangular prism with base edges of lengths 6, 8, and 10 and height 2

- geometry -
**Ms. Sue**, Tuesday, July 28, 2009 at 10:03pmCheck these sites for the formula and instructions.

http://mathcentral.uregina.ca/QQ/database/QQ.09.04/jessica1.html

(Broken Link Removed)

- geometry -
**MathMate**, Tuesday, July 28, 2009 at 11:26pmThe surface area of the prism is the sum of all its surfaces.

The top and bottom have the same shape, namely a right triangle with sides 6,8 and 10. So that should not cause difficulties since the base and height of these two triangles are 6 and 8 respectively.

There are three vertical faces each of height 2 and width equal to the side length (6,8,10) of the base triangle. So the area of these three rectangular faces must be added to complete the area calculation.

Post your work if you are not sure of the answer.

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