In triangle RST, M and N are two points on RS and RT respectively such that MN is parallel to the base ST. If RM = 13 MS, and ST = 5.6 cm, what is the ratio of the area of ΔRMN to the area of trapezium MNST?

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.