Surface area of a trangular prism with height of 15 a side with 9 and side with 12

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asked Jun 22, 2018 19.7k views

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Beeudoublez · Answer 1 · 2018-06-29T02:11:38+0000

A tip for doing these question, you should draw the shape out and label the sides, then calculate each side.
TSA (Total Surface Area) = 2(1/2*9*12) + 2(15*12) + 9*15
= 108 + 360 + 135
=603
Remember to add your units!

Surface area of a trangular prism with height of 15 a side with 9 and side with 12

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