Perimeter of rectangle =2(l+b)80+20 =100m 100×2 = 200m 200×12 = ruppes 2400

Cost of Fencing a Rectangular Park

To find the cost of fencing a rectangular park, we need to calculate the perimeter of the park and then multiply it by the cost per meter of fencing. Let's break down the problem into steps:

Step 1: Calculate the Perimeter
The perimeter of a rectangle is given by the formula: P = 2(l + b), where P is the perimeter, l is the length, and b is the breadth.

Given:
Length (l) = 80m
Breadth (b) = 20m

Using the formula, we can calculate the perimeter:
P = 2(80 + 20)
P = 2(100)
P = 200m

Step 2: Calculate the Cost
The cost of fencing is given as Rs 12 per meter. Therefore, we need to multiply the perimeter by the cost per meter to find the total cost.

Given:
Cost per meter = Rs 12

Total Cost = Perimeter * Cost per meter
Total Cost = 200m * Rs 12
Total Cost = Rs 2400

Therefore, the cost of fencing a rectangular park with a length of 80m and breadth of 20m at the rate of Rs 12 per meter is Rs 2400.

Summary:
- Length of the park = 80m
- Breadth of the park = 20m
- Perimeter of the park = 2(80 + 20) = 200m
- Cost per meter of fencing = Rs 12
- Total cost of fencing = Perimeter * Cost per meter = 200m * Rs 12 = Rs 2400