Question

13. Find the cost of fencing a rectangular park of length 125 m and breadth 85 m at the rate of
315 per metre.​

Answer 1

• Cost of fencing rectangular park is Rs.132300.

Step-by-step explanation:

Given:-

• Length and Breadth of rectangular park is 125 m and 85 m respectively.
• Cost of fencing is 315 per metre.

To find:-

• Cost of fencing rectangular park.

Solution:-

• We know circumference and perimeter is same. So,

$\boxed{ \sf \bold { \star \:Perimeter \: of \: rectangle = 2(l + b) }}$

In which,

• l and b are length and breadth of rectangle respectively.

l = 125 m

b = 85 m

Put the values in formula :

$\longrightarrow \sf 2 \times (125 + 85)$

$\longrightarrow \sf 250 + 170$

$\longrightarrow \sf 420$

Perimeter = Circumference

Circumference of rectangular park is 420 m.

If, Cost of fencing 1 m = Rs.315

Then, Cost of fencing 420 m :

$\longrightarrow \sf420 \times 315$

$\longrightarrow \sf 132300$

Therefore,

Cost of fencing rectangular park is Rs.132300.