lisa walks 15 feet from the base of the tree.
lisa walks 15 feet from the base of the tree. She measures an angle of elevation from the ground to the nest of 62. Find how high the nest is above the ground, to the nearest foot.
2 Answers By Expert Tutors
draw a right triangle
one side is the height the nest is above the ground-call it n
the other side is 15 feet
the hypotenuse is the line of sight at 62 degrees
n=28 feet above the ground
The angle of elevation is the angle between the horizontal and the line from the object to the observer's eye.
if the angle of elevation is 62 degrees, then tan(62 deg) = height of nest / 15
Solving this, we get a height of 28 ft for the nest (rounded to the nearest foot).
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