SOLUTION: Find the total surface area of a right triangular prism whose base sides are 5cm,12cm and 13cm,and its height is 11cm. the base is a right angled triangle.. I need your help!!!!

Question 233408: Find the total surface area of a right triangular prism whose base sides are 5cm,12cm and 13cm,and its height is 11cm. the base is a right angled triangle..
I need your help!!!!Help me now plzz!!!!!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Find the total surface area of a right triangular prism whose base sides are 5cm,12cm and 13cm,and its height is 11cm. the base is a right angled triangle..
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The base's area is 5*12/2 = 30. The "top" is also 30.
The other 3 faces have areas of:
11*5, 11*12 and 11*13
= 11*(5+12+13) = 11*30
Area = 330 + 30 + 30
Area = 390 sq cm
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