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vovikov84 [41]
3 years ago
13

Find the surface area of the cube shown below.Help, I don't get this.​

Mathematics
2 answers:
Mars2501 [29]3 years ago
5 0

Answer:

37.5

Step-by-step explanation:

Surface area of a rectangular prism (a cube is a rectangular prism) is 2B + Ph

B is area of the base so do width x length. In cube all side lengths are the same, so do 2.5 x 2.5.

B= 6.25

P is perimeter of base so do 2.5 + 2.5 + 2.5 + 2.5 = 10

P=10

h is the height of the prism, but all sides are the same anyway so it's 2.5

h=2.5

2(6.25) + 10(2.5)

12.5 + 25

37.5

kirill [66]3 years ago
4 0

Answer:

37.5 units^2

Step-by-step explanation:

As the area of each of the side of the cube are the same we can multiply the area of one side by 6.

The area of one side is

2.5*2.5=6.25\\\\6.25*6=37.5

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https://www.khanacademy.org/math/precalculus/prob-comb/combinatorics-precalc/v/permutation-formula

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