measuring tree 2

measuring tree 2
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  • We are now inside to measure the height of the trees using all of our measurements
  • As this is only an example I will be using hypothetical measurements :)
  • Let's say that my eye level height is 150cm, the angle of the top of the tree is 21°, and the distance between me and the tree is 154cm
  • 150cm21°154cm
  • 150cm
  • To find the height of the whole tree we need to add the x value and our eye level height
  • 21°
  • 154cm
  • h = 59.1 + 150 = 209.1cm
  • Now you're done!
  • x
  • eye level height = 150cm
  • Using a diagram will assist us in calculating the tree's height easier. 'h' signifies the tree's height which is currently unknown.
  • distance = 154cm
  • angle (clinometer reading) = 21°
  • h
  • The basic formula for finding height is 'distance * tan(angle'tan is used as there is no measurement on the hypotenuse, only the adjacent and opposite sides.
  • 21°
  • 154cm
  • The working out for this example would be '154 * tan(21'x = 59.1cm'x' is the value of the triangle without the inclusion of the eye level height
  • x
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