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20 December, 12:30

This wooden block is in the shape of a cube with a side length of 30cm. A 10-cm square hole is cut through the block. Determine the total surface area of the block.

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  1. 20 December, 13:00
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    30x30 = 900

    10x10=100

    900x6 = 5400

    100x2=200

    5400-200 = 5200 cm²
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