7 The angle between the original line of sight (eye-level) and the new line of sight is known as the angle of elevation because I have to lift up orelevate my eye in order to see the object.eye - level
15 The angles are equal – they are alternate angles eye - leveleye - level
16 A Tree Casts A Shadow 87 Feet Long A Tree Casts A Shadow 87 Feet Long. If the Angle Of Elevation From The Ground To The Top Of The Tree is 50°, Find The Height Of The Tree. (round to the nearest tenth)x50o87
17 S O H C A H T O A Step1: label the names of the sides. xOppositeStep2: Choose the ratio that contains BOTH letters.AdjacentS O HC A HT O AOppositetan (50) =Adjacentxtan (50) =87x =103.7 ft
19 S O H C A H T O A Step1: label the names of the sides. Adjacent10o120 ftxOppositeStep2: Choose the ratio that contains BOTH letters.S O HC A HT O AOppositetan (10) =Adjacent120tan (10) =xx =185.1 ft
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