Area of a Square Calculator

This Area of a Square Calculator helps you find the space inside a square when the side length is known. It uses the formula A = a², where a is the side length and the answer is written in square units. First square the side length to get the area. It is a simple way to check answers, understand the square area formula, and practise basic geometry step by step.

In the diagram, each side is labeled a.

Step-by-step method

1. Identify what is given.
2. Write the formula.
3. Substitute the value and calculate the area.

Formula:

Example 1:

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: \(A = a^{2}\).

Step 3 - Substitute the value and calculate the area.

In this problem: Substitute \(a = 5\): \(A = 5^{2} = 25\).

Final answer:

Example 2:

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: \(A = a^{2}\).

Step 3 - Substitute the value and calculate the area.

In this problem: Substitute \(a = 3.5\): \(A = 3.5^{2} = 12.25\).

Final answer: