Please help I'll give brainliest Find the surface area of a number cube if the height is 3cm.

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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! :)

162 cm^3

Step-by-step explanation:

here's your solution

==> surface area of cube = 6a^3

==> a = 3 cm

==> surface area = 6*3^3

==> surface area = 6*27

==> surface area of cube = 162 cm^3

hope it helps

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

56

step-by-step explanation: