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2 July, 11:40

Calculate the total surface area of this hemisphere radius 9 give your answer in 1 decimal place

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  1. 2 July, 12:08
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    763.4 units²

    Step-by-step explanation:

    Curved SA = 2*pi*r²

    = 2*pi*9² = 162pi units²

    Circular base = pi*r²

    = pi*9² = 81pi units²

    Total = 162pi + 81pi = 243pi units²

    = 763.4070148 units²

    = 763.4 units²
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