1.

The area of a field in the shape of a regular hexagon is 3750√3 m2. What will be the cost (in Rs.) of putting fence around it at Rs. 29 per meter?1. 10,1502. 7,2503. 9,4254. 8,700

Answer» Correct Answer - Option 4 : 8,700

Given:

Area of hexagonal field is 3750√3 m2 

Cost of fencing is Rs. 29 per meter

Formula Used:

Area of hexagon = 6 × (√3)/4 × a2

Perimeter of a hexagon = 6 × a

Where a is a side of hexagon.

Cocnept Used:

Fencing is done around the boundaries of any field.

i.e. We need to calculate the perimeter of a field,

To find the length of fencing.

Calculation:

Area of hexagon = 6 × (√3)/4 × a2

⇒  3750√3 = 6 × (√3)/4 × a2

⇒ 3750 = 6 × 1/4 × a2
⇒ (3750 × 4)/6 = a2
⇒ 2500 = a2
⇒ a = 50
Perimeter of a hexagonal field = 6 × a
⇒ Perimeter of a hexagonal field = 6 × 50 
⇒ Perimeter of a hexagonal field = 300 meter.
Cost of fencing is Rs. 29 per meter
⇒ Total cost of fencing is,
⇒ 29 × 300
⇒ 8,700 Rs.
∴ Total cost of fencing is Rs. 8,700.


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