What is the distance between -2 1/2,-3and 1,3

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Me because some of question i don’t understand