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What is answer for this problem?

What is answer for this problem?-example-1

1 Answer

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The area of the two triangular faces is
triangle area = (10 cm)·(24 cm) = 240 cm²

The area of the rectangular faces is
(23 cm)·(24 cm + 10 cm + 26 cm) = 1380 cm²

The total area is the sum of these
240 cm² + 1380 cm² = 1620 cm²
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