3. (4 points) Solve the following ASA/SAA problems by giving both exact answers and answers approximated to one decimal place. The usual convention on the names of sides and angles/vertices of a triangle is in place: side a is opposite to angle A, side b is opposite to angle B, etc. \text { (a) }\left(2 \text { points) } A=55^{\circ}, B=110^{\circ}, b=15\right. \text { . } \text { (b) }\left(2 \text { points) } B=8^{\circ}, C=85^{\circ}, a=20\right. \text { . }

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