A rhombus
A rhombus has sides of length 10 cm, and the angle between two adjacent sides is 76 degrees. Find the length of the longer diagonal of the rhombus.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- expression of a variable from the formula
- planimetrics
- right triangle
- triangle
- rhombus
- diagonal
- The Law of Cosines
- goniometry and trigonometry
- cosine
Units of physical quantities:
Grade of the word problem:
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