please help I’ll give brainliest Find the surface area of a number cube if the height is 3cm. ​

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please help I’ll give brainliest

Find the surface area of a number cube if the height is 3cm.

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Bình An 6 months 2021-08-28T11:13:44+00:00 2 Answers 1 views 0

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    0
    2021-08-28T11:14:54+00:00

    Answer: 54 cm²

    Step-by-step explanation:

    To find the area we have to:

    1) Multiply 3 x 3= 9 (we do this because a cube has equal sides so if the height is 3 then the base will be 3).

    2) Then take 9 and multiply it by the number of sides of a cube (6 sides)

    so, do 9 x 6 = 54cm²

    Hope that helped! 🙂

    0
    2021-08-28T11:15:41+00:00

    Answer:

    54 cm^3

    Step-by-step explanation:

    here’s your solution

    ==> surface area of cube = 6a^2

    ==> a = 3 cm

    ==> surface area = 6*3^2

    ==> surface area = 6*9

    ==> surface area of cube = 54 cm^3

    hope it helps

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