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The point A(-8,4) is plotted on a grid. A line segment joins A to the origin, forming the obtuse angle P Find the sin, Cos and tan ratios for angle P Determine the measure of angle P
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Anonymous
AO = √((-8)²+4²) = 4√5 sinP = 4/(4√5) = √5/5 cosP = -8/(4√5) = -2√5/5 tanP = 4/(-8) = -½ P = arccos(-2√5/5) ≅ 153.4°
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Anonymous
sin P = 4 / √80 cos P = - 8 / √80 tan P = - 1 / 2 P = 180⁰ - 26•6⁰ P = 153•4⁰
