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18 December, 22:51

A diagram shows a square with a perimeter of 40cm. Work out the percentage of the area inside the square that is shaded.

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  1. 19 December, 00:46
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    Step-by-step explanation:

    10*10=100

    3*10=30

    6*10=60

    15+30=45

    100-45=55

    55cm²
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