Write the equivalent fractions for 4/9 and 10/11 using the least common denominator

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.

Which best explains why this triangle is or is not a right triangle?

Could someone with number 1 and 2