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2 September, 19:14

Solids X and Y are similar.

X has volume of 64 cm3

Y has volume of 729 cm3

The surface area of X is 208 cm2

Work out the surface area of Y.

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Answers (1)
  1. 2 September, 22:37
    +1
    Answer: 2,369.25 cm3

    Step-by-step explanation:

    Hi, to answer this question we have to use proportions:

    X has volume of 64 cm3 and s surface area of 208 cm2

    The proportion is = volume / surface area = 64/208

    Y has volume of 729 cm3

    Volume / surface area = 729 / s (surface area of y)

    64/208 = 729 / s

    Solving for s:

    s = 729 / (64/208)

    s = 2,369.25 cm3

    Feel free to ask for more if needed or if you did not understand something.
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