A circular playground has a circumference of 176 feet what is the distance from the edge of the playground to the middle of the playground?

The sum of two numbers is 86, and their difference is 20. find the two numbers

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)