Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The area of a field in the shape of a regular hexagon is 2400\(\sqrt {3}\) m². The cost of fencing the field at ₨.19.20/ metre is:

Options:

₨. 4,608

₨. 4,688

₨. 6,608

₨. 4,758

Correct Answer:

₨. 4,608

Explanation:

Area of a hexagon = 6 x area of one equilateral tringle = 6 x \(\frac{\sqrt {3}}{4}\) side² = 2400\(\sqrt {3}\)

side² = 1600

s = 40

Perimeter = 6 x side = 6 x 40 = 240 m

Cost = 240 x 19.20 = ₨. 4,608