Learning Aeasement 1: Check Your Understanding. In this activity, use the Law of Sines andlor Law of Cosines, solve the missing angles/sides of the following triangles. Write your answer on the space provided. 2. M 16 78 N 13 G 21.24 28 84 29 cm 3. In AABC, A = 43', b = 20, c = 22 4. in AABC, C = 104.33 , a 258, b = 144 5. the two legs of an isosceles triangle measure 34.51 cm each and its base angles measure 240 each. How long is its base