Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

Find the total surface area of a cube whose volume is 343 m3.

Options:

186 m2

294 m2

196 m

210 m2

Correct Answer:

294 m2

Explanation:

We know that,

Volume of cube = side3

Total surface area of cube = 6 side2

We have,

Volume of cube = 343 m3

 side 3 = 343

 side = 7 m

Now , 6 × side 2 = 6 × 7 ×7 = 294 m2