Asked by Lynn
The legs of a right triangular prism measure 9 inches and 12 inches. The prism has a height of 5 inches. What is the surface area of the prism?
Answers
Answered by
oobleck
the two bases have area 9*12/2 = 54
the three lateral faces are rectangles, with height 5, and width equal to the sides of the right triangle.
So now you just have to determine the hypotenuse of a scaled-up 3-4-5 right triangle (or use the Pythagorean Theorem, if you must).
the three lateral faces are rectangles, with height 5, and width equal to the sides of the right triangle.
So now you just have to determine the hypotenuse of a scaled-up 3-4-5 right triangle (or use the Pythagorean Theorem, if you must).
Answered by
Lynn
thank you so much oobleck for your help!
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