1) In the accompanying diagram, AC and BD are chords of circle O and intersect at E. If mAB = 70 and mCD = 90, find m/BEA. !! C 90° E B 70이 A

What angle in standard position, to the nearest degree, does the terminal point P(3, –2) form?

Let P = (−25,0), Q = (25,0), and R = (−24,7). (a) Find an equation for the circle that goes through P, Q, and R. (b) Find at least two ways of showing that angle PRQ is right. (c) Find coordinates for three other points R that would have made angle PRQ right.

What term describes the section between points A and D?