## Examples based on Finding the cost of fencing of a rectangular field

**Question 1**

Find the cost of fencing of a rectangular field 65 m long and 55 m wide at ₹ 10 per metre?

**Explanation**

Length of the field = 65 m

Breadth of the field = 55 m

Perimeter of the field = 2 ( l+b ) units

Perimeter of the field = 2 ( 65 + 55 ) m

Perimeter of the field = ( 2 x 120 ) m

Perimeter of the field = 240 m

Cost of fencing per metre = ₹ 10

Total cost of fencing = ₹ ( 240 x 10 ) = ₹ 2400

**Question 2**

Find the cost of fencing of a rectangular field 100 m long and 50 m wide at ₹ 12 per metre?

**Explanation**

Length of the field = 100 m

Breadth of the field = 50 m

Perimeter of the field = 2 ( l+b ) units

Perimeter of the field = 2 ( 100 + 50 ) m

Perimeter of the field = ( 2 x 150 ) m

Perimeter of the field = 300 m

Cost of fencing per metre = ₹ 12

Total cost of fencing = ₹ ( 300 x 12 ) = ₹ 3600

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