General triangle
Given a general triangle ABC. Its perimeter is 30 cm, with side a=2 cm longer than side b and 5 cm shorter than side c. Determine the area of the triangle.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- equation
- system of equations
- expression of a variable from the formula
- arithmetic
- square root
- planimetrics
- area of a shape
- perimeter
- triangle
- Heron's formula
Units of physical quantities:
Grade of the word problem:
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