Question

Lily wants to do fencing around a circular garden that has a radius of 70m if the cost of the fencing is 12 per meter, find the total cost of fencing for the entire garden

Answer 1

$5277.88

Explanation:

We want to find what the measure of the outside of the garden is

We can use circumference, because it is the distance around the edge of a circle

The circumference formula is:

c=
`\pi` 2r

Substitute 70 in for r(radius)

c=
`\pi` 2*70

c=
`\pi` 140

c=439.822971503 meters

Now to find the cost

Multiply the cost of fencing per meter by the circumference

439.822971503*12=5277.87565803

The fencing will cost about $5277.88