A rhombus
A rhombus has sides of the length of 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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