Square Area Online calculator (3 ways)

Using this online calculator, you can find the area of a square. The solution can be found in three ways.

This online calculator is not only for calculating the area of a square. Having solved the problem, you will receive a detailed step-by-step solution that will allow you to understand the algorithm for solving such problems and consolidate the material covered.

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A square is a regular quadrilateral with all angles equal and all sides equal. Moreover, all the angles of the square are equal to 90°.
Square area formula The formula for the area of a square on the side where a is the side of the square.

A square is a regular quadrilateral with all angles equal and all sides equal. Moreover, all the angles of the square are equal to 90°.
Square area formula Diagonal square area formula where d is the diagonal of the square.

A square is a regular quadrilateral with all angles equal and all sides equal. Moreover, all the angles of the square are equal to 90°.
Square area formula Perimeter square area formula where P is the perimeter of the square.

Solution:

S =

d²

9²

40.5

Answer: the area of a square with a diagonal 9 equal to 40.5

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