1st Definition of Trigonometry Functions

One way to define trigonometric function is by place a point in a coordinate plane allowing the distance to the origin to be a radius which determines the angle of the function.
1st Definition of Trigonometry Functions

10.5 Segment Lengths in Circles - Theorem 10.15

Move point B around the sketch and see what happens to the chords. Looks for patterns with your partner. (HINT: if you can't find any patterns, try to make the parts nice numbers like 2, 3, 4, etc.). Then copy the if-statement of Theorem 10.15 in your notes and complete the then-statement.

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