What is the pattern? Lonna tells her friend Talia, "The reference angles for 40° are 140°, 220°, and 320° Talia says, "Are you sure, Lonna? Sometimes you can be a little off...you didn't even draw the triangles!" Lonna was offended and scoffed, "Ugh, Talia! You don't NEED to draw it. Just add and subtract 40° from 180° and subtract from 360 140 40 180 -360 What is Lonna talking about? Analyze the groups of angles below and generalize a method for determining all of the other corresponding angles when you are given just one angle: 320 30°, 150°, 210°, 330° 45°, 135°, 215°, 315° 60°, 120°, 240°, 300° 72°, 108°, 252°, 288°

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