A) (a) In the figure below, a tangent and a secant are drawn to a circle from exterior point H.
Suppose that HG = 21 and HD = 31.5. Find HC.
B) (b) In the figure below, two secants are drawn to a circle from exterior point V.
Suppose that VX=22.5, VW = 45, and VZ = 30. Find XY.
