A cicrcle has a circumference of 18 it has an ace of length 6 what is the central angle in degrees

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

If chord ab is congruent to chord cd, then what must be true about ef and eg?