I'm having trouble with two problems that have tangents.

1. Given: The radius of circle O is 0.7; The radius of circle P is 1.1; Line AB is a common internal tangent; AB = 2.4

Find: a. OP; b. The distance between the circles.

2. Given: Diagram as marked with line PA and line PD tangent to circle O.

Find: a. arc AD; b. measure of angle P