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+ 13.1 – Use Trig with Right Triangles Unit VA Day 3 + Do Now Which trig. function of 28º would involve 15 and a? Which trig. function of 28º would involve 15 and c? + Ex. 1. Find the values of the unknown side lengths. + Solving a Right Triangle To solve a right triangle means to find all ________ side lengths and all _______ angle measures. If you already know one acute angle measure, you can find the other angle measure by _______________________________________ You must use trigonometry to find the remaining sides + Example 2 Solve ABC, using the diagram and the given measurements. mA = 40°, c = 8 A B C A 40° H 8 a b O c