Parallelogram - area
Calculate the area of the parallelogram if the sides are a = 80, b = 60 long, and the size of the diagonal angle is 60°.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- quadratic equation
- equation
- expression of a variable from the formula
- arithmetic
- square root
- planimetrics
- Pythagorean theorem
- right triangle
- area of a shape
- triangle
- diagonal
- The Law of Cosines
- Heron's formula
- parallelogram
- goniometry and trigonometry
- sine
- cosine
Units of physical quantities:
Grade of the word problem:
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