According to this diagram, what is sin 28°? A 8/15
B 8/17
C 17/8
D 17/15
E 15/17
F 15/8

If the measure of xyz is 81 what is the measure of yz

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y