The area of a field in the shape of a regular hexagon is 2400√3 m2. What will be the cost of fencing it at Rs. 18.50 per meter?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Rs. 4440
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Concept |
Understanding |
Application |
Fair calculation |
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Area of hexagon = 6 × (√3/4) (Side)2 |
Given Area of hexagonal field = 2400√3 m2 Cost of fencing = Rs. 18.50 per metre |
6 × (√3/4) (Side)2 = 2400√3 ⇒ (Side)2 = 1600 ⇒ Side = 40 m Hence, Perimeter = 6 × side = 240 m Total cost of fencing = (6 x 40) x 18.50 = Rs. 4440 |
(6 x 40) x 18.5 = 240 x 18.5 = 4440 |