What is the scale factor of xyz to uvw

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

The area of square garden is 300m squared. how long is the diagonal?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.