Angles of Elevation/Depression (Leaving Cert Mathematics): Flashcards

Angle formed from horizontal looking upward to object

Angle formed from horizontal looking downward to object

$\sin$, $\cos$, $\tan$

$\tan \theta = \frac{\text{opposite}}{\text{adjacent}}$

Horizontal line

Correct mode (degrees or radians)

$50 \times \tan 30^\circ = 28.85$ m

$40 \div \tan 45^\circ = 40$ m

Draw accurately to visualize the problem

Angle of elevation

Angle of depression