If the lateral surface area of the cube

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

If the lateral surface area of the cube is 144 cm², then what is the length of its side?

Options:

4 cm

8 cm

5 cm

6 cm

Correct Answer:

6 cm

Explanation:

We know that,

The lateral surface area of the cube = 4(side)²

According to the question, 4 × (side)² = 144

side² = \(\frac{144}{4}\) = 36

Side = \(\sqrt {36}\) = 6 cm