Question

Find the cost of fencing circular garden of radius 25meters at the rate of ₹3per metre.(take π=3.14)

Answer 1

at first we need to take out the circumference or perimeter of the circular garden,
Circumference=2 π r=2×3.14×25=157m
now the cost of fencing a circular ground=₹(3×157)=₹471
hope it helps...

Answer 2

Answer:

The cost of the fencing is ₹471 .

Step-by-step explanation:

Formula

$Circumference\of\ a\ circle = 2\pi r$

Where r is the radius of the circle .

As given

The cost of fencing circular garden of radius 25 meters at the rate of ₹ 3 per metre.

π = 3 .14

Put in the formula

$Circumference\of\ a\ circle = 2\times 3.14\times 25$

                                                    = 157 m

Cost of the fencing = Circumference of the circle × Cost per meter

                                = 157 × 3

                                = ₹ 471

Therefore the cost of the fencing is ₹471 .