Two circles touch each other internally. Their radii are 3 cm and 4 cm. What is the length of the longest chord of the larger circle which is completely outside the inner circle (tangent to the inner circle)?

If B is the center of a circle and lines AD and CD are tangent segments drawn from an external point D, then which of the following classifications apply to quadrilateral ABCD? (a) Kite (b) Cyclic quadrilateral (c) Rhombus (d) Trapezium

In a parallelogram PQRS, rays PA and SA are the angle bisectors of ∠QPS and ∠RSP respectively. Find the measure of ∠PAS.