SAS calculation
Given the triangle ABC, if side b is 31 ft., side c is 22 ft., and angle A is 47°, find side a. Please round to one decimal.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- arithmetic
- square root
- planimetrics
- Pythagorean theorem
- triangle
- The Law of Cosines
- basic functions
- percentages
- goniometry and trigonometry
- cosine
Units of physical quantities:
Grade of the word problem:
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