Question

a 18-ft ladder leans against a building so that the angle between the ground and the ladder is 63°. how high does the ladder reach on the building? (round your answer to the nearest foot.)

Answer 1

The height of the building we name h because it’s unknown
The ladder length we know Already 18ft
Using trigonometry ratio
Sin θ= opp\hyp
Sin63°= h\18
18sin63 =h
16.039ft=h
The height of the building is 16ft