Surface area of a triangular prism
Find the area of every face and add them.
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A triangular prism has right-triangle ends with sides 5 cm, 12 cm and 13 cm. The prism is 12 cm long. What is its surface area in cm²?
Answer: 420
A triangular prism has right-triangle ends with sides 6 cm, 8 cm and 10 cm. The prism is 10 cm long. What is its surface area in cm²?
Answer: 288
A triangular prism has right-triangle ends with sides 9 cm, 12 cm and 15 cm. The prism is 2 cm long. What is its surface area in cm²?
Answer: 180
Tip: Find the area of every face and add them.
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