Ican't figure this out.: find the degree measure of the central angle for sector c. it's also if you can explain how to get the answer.

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i

Right triangle abc has three sides with lengths ab= 119, bc = 169, ca= 120. find the value of cos c. hint: draw and label the triangle. the hypotenuse is always the longest.