A ship is on the surface of the water, and its radar detects a submarine at a horizontal distance of 238m away underwater, at an
angle of depression of 25 degrees. Find the depth of the submarine.
1 answer:
Answer:
110.98 m
Step-by-step explanation:
you have a right triangle and you know the adjacent side to the 25 degree angle and are looking for the opposite side of the angle
tan of an angle = opposite side/adjacent side
Let d = depth of submarine
So, tan 25 = d/238
238 tan 25 = d
d = 110.98 m
Note: You must memorize the definitions of all the trig functions and then these types of problems will be easy. OK?
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