Find x, y, and z

please help

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Use the graph of the sine function y=2sinθ shown below

State if the two triangles are congruent. if they are, state how you know?