Circumference 9211
The rectangle has a circumference of 30 cm, and its width is 3 cm shorter than its length. What is its area?
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
- planimetrics
- area of a shape
- perimeter
- rectangle
Units of physical quantities:
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