Question

An observer 1.5m tall is 28.5 away from a chimney the angle of elevation of the top of the chimney from her eyes is 45 what is the height of the chimney

​

Answer 1

Step-by-step explanation:

let the height of the chimney = h +1.5

h is perpendicular

distance between observer and chimney is base

AB= h

AC=AB+BC= h+BC

and BC = height of the observer

BC= 1.5 m

h = AC- 1.5

tan45= perpendicular/base

tan45= h-1.5/28.5

1=h-1.5/28.5

h= 30 m

h

tan45= h+