Literacy

1
Literacy
Research
Memory
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
  20 000 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?