not too high!
Geometry
Level
2
from the top of a cliff, the angle of depression of a boat on the sea is 22degree if the height of the cliff from the sea level is 40m, find correct to 2sf, the horizontal distance of the boat from the bottom of the cliff.
85
96
44
99
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1 solution
Because the angle of depression is 22 degrees, and the height of the right triangle is 40 meters, the horizontal distance can be found using the tangent ratio. The distance therefore becomes tan22=40/x x=40/tan22 x=99.002=99 meters