Area of a Square Calculator
Use this calculator to find the area of a square when you know its side length.
Area tells you how much space the square covers (in square units).
In the diagram, each side is labeled a.
Step-by-step method
- Identify what is given.
- Write the formula.
- Substitute the value and calculate the area.
Formula:
Example 1: a = 5
Step 1 - Identify what is given.
In this problem: The given side length is a = 5.
Step 2 - Write the formula.
In this problem: Use the square area formula: A = a².
Step 3 - Substitute the value and calculate the area.
In this problem: Substitute a = 5: A = 5² = 25.
Final answer: A = 25
Example 2: a = 3.5
Step 1 - Identify what is given.
In this problem: The given side length is a = 3.5.
Step 2 - Write the formula.
In this problem: Use the square area formula: A = a².
Step 3 - Substitute the value and calculate the area.
In this problem: Substitute a = 3.5: A = 3.5² = 12.25.
Final answer: A = 12.25
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