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12-04-2019
Mathematics

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Need step by step explanation please!

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14-04-2019

Answer:

Blank area:40cm²

Shadow area:100cm²

Step-by-step explanation:

The total area：10×14=140cm²

Triangle area：10×8×[tex]\frac{1}{2}[/tex]=40cm²

Shadow area:140-40=100cm²

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