Question

5. A draw bridge is about 54 ft long.

A seagull is sitting on the edge
of the drawbridge. If the
drawbridge is raised so that the
angle of elevation is 30°, how
high does the seagull rise?
​

Answer 1

Seagull is 27 ft high

Explanation:

Given in the question,

length of bridge = 54ft

angle of elevation = 30°

It is a right angle triangle question and we will use trigonometry identity to the solve the question.

sinФ = opposite / hypotenuse

sin(30) = height / 54

height = 54(sin(30)

height = 27 ft

So, seagull is 27 ft high above the ground.