Everyday Math Essentials
Cover quick calculations for percentages, fractions, averages, and ratios used in school, shopping, and spreadsheets.
□ Square Calculator
Calculate area, perimeter, and diagonal of squares
About Squares
A square is a regular quadrilateral with four equal sides and four right angles.
Formulas
- Area: A = side²
- Perimeter: P = 4 × side
- Diagonal: d = side × √2
Frequently Asked Questions
Why is diagonal = side × √2?
The diagonal divides the square into two right triangles. Using Pythagorean theorem: d² = s² + s² = 2s², so d = s√2.
Is a square a rectangle?
Yes, a square is a special type of rectangle where all sides are equal.
🧭 Guided Journeys
Use a workflow instead of stopping at one result
These grouped paths are designed to help you continue with the most common follow-up calculations in this category.
Algebra & Equations
Move from powers and logarithms into more advanced solving tools when the problem gets more complex.
Geometry & Measurement
Calculate dimensions, area, and triangle relationships using a connected geometry workflow.