Problems 9 through 14 refer to Figure 17 Remember The sum of the three angles in any triangle is always 180 C A D FIGURE 17 B 9 Find a if A 30 10 Find B if 45 11 Find a if A a 12 Find a if A 2a 13 Find A if B 30 and a 100 14 Find B if a B 80 and A 80