Question

A circular garden has a diameter of 7ft.

I want to build a fence around the garden. What is the amount of fencing I would need?
I also want to fill in the entire space with mulch. How big is the space inside the garden?
Answer in the following format:

Amount of fence needed: __

Amount of space inside the garden: __

Answer 1

Amount of fence: 21.98 ft.

Amount of space inside the garden: 38.48 ft^2

Explanation:

The circumference is found by multiplying the diameter by pi, or the radius×2 with pi.

Multiplying 7 by the simpler version of pi, 3.14, you'd get 21.98 ft of fence. You can round that if needed, but 21.98 is a lot more specific.

For the amount of space in the garden would be the area. The area is about 38.48 ft^2 when rounded.