a. If the radius of Ois 17 and AB-30, then OE- 0 ΠΕ A B b. If AE=10, EB=9, and CE=15, then ED= D A E C B

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A: 1. A=50°, B=65°, a=102. B=60°, b=12, c=153. B=30°, b=15, c=204. a=4, b=9, c=65. a=39, b=52, C=122°

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A: In both the examples right angle traingle  so we have to use formule of sinx ,cosx , tanx.

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