In the figure below, Z is the center of the circle. Suppose that QR = 20, RV = 10, SV = 2x + 2, and VZ = 7.5 Find the following.
2x + 2 = 10
x = 4
UZ = VZ = 7.5
WU = 5
Arc QWR ≈ 106.26º
WZ = YZ = 12.5
Area = 12.52pi
Circumference = 25pi
+1694 
