Concept explainers
Estimates of Heights There is a relatively simple way to make a reasonable estimate of a vertical height.
Step 1 Hold a 1-ft ruler vertically at arm’s length and approach the object to be measured.
Step 2 Stop when one end of the ruler lines up with the top of the object and the other end with its base.
Step 3 Now pace off the distance to the object, taking normal strides. The number of paces will be the approximate height of the object in feet.
Reasons
(a)
(b)
(c)
(d) CG ft = EG paces _______________________________
(e) What is the height of the tree in feet?
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Trigonometry (11th Edition)
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