The pond
We can see the pond at an angle of 65°37'. Its endpoints are 155 m and 177 m away from the observer. What is the width of the pond?
Correct answer:
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Cosine rule uses trigonometric SAS triangle calculator.
See also our trigonometric triangle calculator.
Cosine rule uses trigonometric SAS triangle calculator.
See also our trigonometric triangle calculator.
You need to know the following knowledge to solve this word math problem:
- algebra
- isolating a variable in the formula
- planimetrics
- Pythagorean theorem
- right triangle
- triangle
- The Law of Cosines
- goniometry and trigonometry
- cosine
Units of physical quantities:
Grade of the word problem:
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