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Height of an object using Trignonometry
anonymous on 12. Jun, 2019 — Lang: English

Transcript
ExpandHow to Figure out the Height of an Object using Trigonometry
To figure out the height of an object using trigonometry, you need to ...
Step 1. Find an object that is tall.
In this instance, I had used a pole.
The pole I used is to my right
(10 degrees)
6.41 m
x
Step 3. Name the sides of the rightangled triangle and detemine the trigonometric ratio (TOA)
(10 degrees)
6.41 m
x
x = opposite
6.41m = adjacent
Step 4. Substitute the known values
(10 degrees)
6.41 m
x
Step 5. Multiply both sides by 6.41 and write the answer correct to one decimal place
(10 degrees)
6.41 m
x
Step 2. Draw a diagram and label the required height as x.
tan theta = opposite / adjacent
tan 10 degrees = x / 6.41m
tan 10 degrees = x / 6.41m
6.41xtan10 = x
1.130255946 = x
1.1m = x (1 decimal place)