What is the surface area of the composite figure?

1 answer:

7 0

A1 = 6 × 6 = 36 mm²

A2 = 4 × 6 × 7 = 168 mm²

A3 = 4 × 6 × 4 / 2 = 48 mm²

A1 + A2 + A3 = 36 + 168 + 48 = 252 mm²

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