Question

9. How total surface area of a cube is 150 m²? Find length of its edge.
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Answer 1

Answer:

There are 6 faces on a cube. Each face of the cube is a square. The formula for the area of a square is s^2, where s is the square’s side length. Therefore, the surface area of a cube is 6 * s^2.

Now solving with the information given, we have

6* s^2 = 150

s^2 =25

s = 5

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Answer 2

Answer:

Total surface area of a cube =150 cm²

Total surface area of a cube=6a² [ a= side of a cube]

Then,

150=6a²

or, a²=

6

150

or, a²=25

Step-by-step explanation:

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