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Deepak Bora
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2 cubes, each of volume 125 cm³ , are joined end to end. Find the surface area of the resulting cuboid.

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CBSE 10th Class Mathematics
Past year question paper
Year 2020
SET 1, Code Number  – 30/5/1
Question Number –  26
volume area problem
volume problem with that surface area

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  1. Volume of cube = 125 cm³
    Let ‘a’ be edge of cube
    So  a³ = 125
    a = 5
    Cuboid : Length,

    l =10cm
    b = 5 cm
    h = 5 cm
    surface area = 2( lb + bh +hl )
    = 2 (50 + 25 + 50)

    surface area = 250 cm²

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