Question

If the line of sight and angle of elevation is given, then which trigonometric ratio is used to find the distance from the foot of the building?
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correct answer will be marked as brainlist and wrong answers will be reported​

Answer 1

Answer:

cosine is the correct answer

Explanation:

hope it helps!!

Answer 2

The cosine trigonometric ratio will be used to find the distance from the foot of the building.

• Consider the point of observation to be A, the line of sight to be AC, and the foot of the building to be B.
• Then in ΔABC, ∠BAC = θ will be the angle of elevation. And we need to find the value of AB.
• If we use the cosine ratio for θ, cosθ = AB/AC. Since the value of AC and θ is given to us, we can easily find the value of AB.