Calculate the total surface area of a triangular prism with length=20, breadth=8, height=6
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Answer:
l = 20, b = 8 ,h = 6
total surface area = 2(lb+bh+hl)
= 2(20×8 + 8×6 + 6×20)
= 2(160 + 48 + 120)
= 2(328)
= 656 sq units
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