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3. Eric is flying an airplane at an altitude of 2200 feet. He sees his house on 1 point
the ground at a 45-degree angle of depression. What is Eric's horizontal
distance from his house at this point?
2200 ft
A. 110 feet
B. 220 feet
C. 1100 feet
D. 2200 feet

3 Eric is flying an airplane at an altitude of 2200 feet He sees his house on 1 point the ground at a 45degree angle of depression What is Erics horizontal dist class=

Respuesta :

Answer:

D    2200 feet

Step-by-step explanation:

Let d = the horizontal distance

tan 45 = 2200/d

dtan 45 = 2200

d = 2200/tan 45

d = 2200 ft.

Another solution is to recognize that the triangle is a 45-45-90 triangle and that the legs are congruent in the triangle.  So, the horizontal leg is the same as the vertical leg = 2200

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