Free online math practice
Rectangle formulas Practice
Rectangle area and perimeter.
Start practicingRectangle formulas
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What you’ll practice
Area and perimeter describe different measurements. Area multiplies length and width; perimeter adds the four side lengths.
Where this helps
Distinguishing the space inside a rectangle from the distance around it.
Before you start
Use this topic to practice math you have already learned. The examples show the available kinds of recall tasks; this is not a complete textbook chapter. Check the answer form and any stated conditions.
Try a few examples
Real practice. Real progress.
Example 1 of 2
All named side, base, and perpendicular-height quantities are nonnegative real lengths.
Not drawn to scale
Choose the exact expression.
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Start practicingRectangle formulas
- Free to practice.
- No account required.
- Progress stays on this device.