div68
div68 div68
  • 10-10-2020
  • Mathematics
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Pls help me. Plus, working. Thank you​

Pls help me Plus working Thank you class=

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kleenn15
kleenn15 kleenn15
  • 10-10-2020

Answer:

Total surface area=228cm²

Step-by-step explanation:

Area of bottom(parallelogram)=12×12=144cm²

area of 1 triangle=1/2×8×12=48cm²

area of 3triangles=48×3=144cm²

Total surface area=144+144=228cm²

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