Rectangle ABCD
The rectangle ABCD is given whose | AB | = 5 cm, | AC | = 8 cm, ∢ | CAB | = 30°. How long is the other side, and what is its area?
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
- right triangle
- area of a shape
- triangle
- rectangle
- goniometry and trigonometry
- sine
- cosine
- arcsine
Units of physical quantities:
Grade of the word problem:
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