Larson 5thed trig - Battaly

Figure 66. Then, because 600 = 77/3 radians, you can draw an equilateral triangle with sides of length I and 6 as one of its angles. Because the altitude of this triangle bisects its base, you know that x = Using the Pythagorean Theorem, you obtain Now, knowing the values Of x, y, and r, you can write the following. FIGURE 66 The angle 77/3 ................
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