Question

1. Find the side of a cube whose surface area is 5400 sq. cm.​

Answer 1

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Answer 2

Answer:

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The side of that cube is 30 m.

Given data :

• Surface area of the given cube = 5400m²

Let,the side of the cube = x m ( Here we assume x as a variable to calculate the numerical value of the one side of the given cube)

• Now,we have to calculate the surface area of the given cube by using the following formula :

⇒ 6 × (side)²

• Now side of the given cube = x

So,the surface area = 6x² m²

• Now,tha surface area of that cube is also given in the question which we can compare with 6x² to form an equation.

• So,the final equation will be :

⇒ 6x² = 5400

⇒ x² =900

⇒ x = 30

The length of the one side of the given cube is 30 m. (Answer)