Question

Kim wants to put a small fence in the shape of a circle around a tree in her backyard. She wants the radius of the circle to be 2 feet, leaving room to plant flowers around the tree. How many of fencing does she need to buy if it is sold by the foot? Use 3.14 to approximate

Answer 1

In this case, you first need to think about what is the formula for the circumference of a circle. The formula for the circumference of a circle is 2 * PI * r, where r is the radius of the circle, and PI is the mathematical constant approximately equal to 3.14.


`2\pi*r=2*3,14*2=12,56`feet