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12 May, 06:48

Work out the area of this semicircle take pie to be 3.142 and write down all the digits given by your calculator 18cm

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  1. 12 May, 09:55
    0
    509.004 cm²

    Step-by-step explanation:

    A = π·r²/2

    = 3.142·18²/2

    = 3.142·324/2

    = 3.142·162

    = 509.004 cm²
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