If a circle garden has a diameter of 60 feet and there’s a sidewalk 18 feet from the center, how long is the sidewalk?

Step-by-step explanation:

Conditions

A diameter must be chosen such that it meete the sidewalk perpendicular to itself.The diameter meets the sidewalk at the sidewalk's midpoint. The diameter meets the sidewalk such that the diameter is cut into two segments 30+18 and 12The sidewalk is cut in 1/2 where the diameter meets the sidewalk as the diagram shows.If all these conditions are met, the relationship between the four lines is

Equation

48/12 = x^2

Solution

4 = x^2

sqrt(x^2) = sqrt(4)

x  = 2

The length of the sidewalk is 4. Why is it doubled.

Because there are 2 xs of equal length