An observer spots a plane flying at a 42 degree angle to his horizontal line of sight. If the plane is flying at an altitude of
15,000 ft, what is the distance (x) from the plane (P) to the observer (O)
1 answer:
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Refer to the attached image.
As we can observe ABCD is a square, whose corners that is A,B,C and D lie on the circle.
The diameter AC = 0.35 meter.
We have to find the side of square.
Let the measure of side of a square be 'l' meter
In triangle ABC,
By Pythagoras theorem, we get
So, l = 0.25 meter
Therefore, the measure of side of the square is 0.25 meter.
