Question

$\huge {\sf {\underline {\underline {\green {Question :-}}}}}$

The angle of elevation of an aeroplane as observed from a point is found to be 30° & the angle of depression of the reflection in lake is found to be 60°. Determine the height of the aeroplane from the ground.​

Answer 1

Answer:

Pls refer attachment....

Answer 2

Answer:

tan45=ah−30

tan60=a(h+30)

31=h+30h−30

h=30