Geometry: Using Circles of Find Angle Measures

1. Using the figure above, find the value of $x$?

(A)80°

(B)75°

(C)25°

(D)155

(E)15°

The figure is drawn to scale.

2. In the figure above, find the value of $2y^2+\sqrt{x^2}$?

(A)12800

(B)12825

(C)25600

(D)25575

(E)25595

3. In the figure above, find the value of $x$?

(A)85°

(B)75°

(C)65°

(D)55°

(E)45°