madisondacosta madisondacosta

04-01-2017
Mathematics

contestada

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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thimegan thimegan

04-01-2017

30x30= 900

10x10=100

900x6= 5400

100x2=200

5400-200= 5200 cm²

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