Answer:
x = 11.1
Step-by-step explanation:
Cosine theta = adjacent/hypotenuse
cos 42 = x/15
x = 15 cos 42
x = 11.1
The height of the tree which is the opposite side of the right triangle is 145 meters.
<h3>How to find height when given angle of elevation?</h3>
The angle of elevation is 36 degrees.
The situation forms a right angle triangle.
Therefore,
base of the triangle = 200 m
Hence, using trigonometric ratios,
tan 36 = opposite / adjacent
tan 36 = x / 200
x = 200 tan 36
x = 200 × 0.726542528
x = 145.308505601
x = 145.31 m
learn more angle of elevation here: brainly.com/question/21613724
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Answer:
x = 300
Step-by-step explanation:
1 - 2/5 = 3/5
3/5 multiply x = 180
3/5 x 300 = 180
x = 300
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