From the top of a lighthouse 20 meters high, a boat is sighted at an angle of depression of 4 degrees. How far is the boat from the lighthouse, in meters? Round your answer to the nearest meter.

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

answer: yes, since the line has a steeper rate of change than the exponential the y-values will be greater and they will only intersect one time.