1. a 17 cm 32 0 1. Warm Up April 18 and 19 Find the missing variables. Round to the nearest whole number. 20 m x 18 m 6 m b 2. y 12 cm 32 0 r Find the radius and the area of the circle. 3.

2. Answers

3. 12.3 Law of Sines

4. SAS Triangle Area Conjecture a b C

5. Example 1 Find the area of the triangle. 12” 11” 93°

6. Law of Sines b c a AB C

7. Example 2 Find e. D F E 250 cm 59° 38°

8. Try this on your own ex3: 362 m x 46 o 76 o Need to find this angle hint: what do all the angles in a triangle add up to ? X=316.39 m

9. Example 4 Find the measure of angle B. A B C 150’ 250’ 68°

10. Example 5 – try on your own 51 o 14 17 x X= 39.79 0

11. Homework Page 637 # 1 – 11 skip 4