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Find the total surface area of this triangular prism base=5cm 9cm line in the middle 12cm width=20cm 2 lengths on triangle 13cm and 15cm

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1 Answer

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Answer: The total surface area

SA = 845cm^2

Explanation:

Surface area of triangular prism

SA = bh + (s1 + s2 + s3)H

base=5cm 9cm line in the middle 12cm width=20cm 2 lengths on triangle 13cm and 15cm

SA = 5×9 + ( 12 + 13 + 15 )× 20

SA = 45 + 800

SA = 845 cm^2

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