1. Literacy Research Memory Skill Practice Stretch!
Remember: angle of depression is down and elevation is up.
Research the use of a theodolite.
Angle of Depression
Angle of Elevation
Skill Practice
Stretch!
A rocket is fired at an angle of elevation of 62°.
It travels at a speed of 200 metres per second.
a) How long will it take to reach a height of metres? Give your answer to the nearest second.
b) How far will the rocket have travelled?
Give your answers to the nearest metre.
A bird is sitting on top of a telegraph post. The post is 12 metres high. The bird sees a worm in the ground. The angle of depression from the bird is 50°.
a) Calculate the distance of the worm from the bottom of the telegraph post.
b) How far is the bird from the worm?