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3 years ago

11

The formula for the surface of a cube is s 6s^2 where x is the length of one side. Find the length of the side of a cube with a

surface area of 150 square inches
a-5 inches
b-25 inches
c-30 inches
d-900 inches
Jack chose C as the correct answer. How did he get that answer?

1 answer:

Advocard [28]3 years ago

8 0

X=side length
6x^2 = surface area = 150
x^2 = 150/6=25
x=sqrt(25)=5

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The area of a triangle with b base and h as height = $\frac{1}{2}$ bh

Now,

Let, the width = x and the length = x+3.

Here, for the triangle, width will be its base and length will be its height.

According to the problem,

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