Question

In a part a sidewalk is built around the edge of a circular garden has shown below the sidewalk is 5 feet wide in the garden measures 20 feet across which measurement is closest to the circumference of the outer edge of the side walk

Answer 1

I believe that this answer is

100

Answer 2

The closest to the circumference of the outer edge of the side walk is 31.4 feet

Which is closest to the circumference of the outer edge of the side walk

From the question, we have the following parameters that can be used in our computation:

Width of sidewalk = 5 ft

Diameter of garden = 20 ft + 2 * 5 ft = 30 ft

So, we have the circumference of the outer edge of the side walk to be

Circumference = Circumference of garden including the sidewalk - Circumference of garden

So, we have

Circumference of garden including the sidewalk = 2π * (30/2)

= 30π

Circumference of garden = 2π * 10

= 20π

This means that

Circumference = 30π - 20π

Circumference = 10π

Evaluate

Circumference = 10 * 3.14

Circumference = 31.4

Hence, the closest to the circumference is 31.4 feet