The formula of the surface area of any prism is,
Ph + 2B
P = 10 + 24 + 26 = 60
B = area
B triangle = ½ bh
B triangle = ½ 24 × 10 = 120
So,
60 × 34 + 2(120) = 2,280 cm²
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Answer : 2,280 cm²
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I hope that helps you out!!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey