Respuesta :

The triangle prism has 5 sides.

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Area of the bottom rectangle:
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Area = 6 x 7 = 42 m²

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Area of the 2 triangles:
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Area = 2 [ 1/2 x 6 x 4] = 24 m²

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Area of the 2 side rectangle:
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Area = 2 [ 5 x 7] 70 m²

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Total area:
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Total Area = 42 + 24 + 70 = 136 m²

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Answer: Surface area = 136m²
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