Do you need to find the length of the hypotenuse in a right triangle but weren’t sure how? This calculator makes this easy for you. Enter values side A and side B into input field and press calculate button to determine the The length of the hypotenuse.

## Pythagorean Theorem Calculator

**What Is the Pythagorean Theorem?**

You know, corners at 90 degrees? Well, there's a neat trick with those: the longest side, opposite that sharp corner, has a length that equals the sum of the other two sides' lengths squared. Confusing, I know, but so helpful for calculating distances. Construction workers rely on it daily, scientists couldn't live without it, and even computer nerds reach for this tool. While the formula sounds all intense, just remember right angles make it easy to nail lengths every time.

### How To Use The Calculator

This calculator is simple to use. Follow these steps to find the length of the hypotenuse:

**Enter the value for "Side A"**: This represents one of the two shorter sides of the triangle. For example, input**3**.**Enter the value for "Side B"**: This represents the other shorter side of the triangle. For instance, input**4**.- Click the
**"Calculate Hypotenuse"**button. The calculator will display the length of the hypotenuse.

### Formula

To understand how the calculator works, let's revisit the formula and define the variables used:

`$$C=\sqrt{{\text{A}}^{2}+{\text{B}}^{2}}$$`

Variable |
Description |
---|---|

C | Hypotenuse (side opposite the right angle) |

A | Side A (one of the two shorter sides) |

B | Side B (the other shorter side) |

## How To Calculate Pythagorean Theorem?

Let’s go through two examples to see how the calculator works in practice.

### Example 1: Calculating Hypotenuse for Sides 3 and 4

Suppose you have a right triangle where **Side A** is 3 units and **Side B** is 4 units. To find the hypotenuse:

**Enter Side A**: Input**3**into the "Side A" field.**Enter Side B**: Input**4**into the "Side B" field.**Calculate**: Press the "Calculate Hypotenuse" button.

**Step-by-Step Calculation**:

Find the square of **Side A**:

Find the square of **Side B**:

Add the squares of A and B:

Take the square root of the sum:

So, the hypotenuse **C** is **5** units.

### Example 2: Calculating Hypotenuse for Sides 5 and 12

Now, consider a right triangle where **Side A** is 5 units and **Side B** is 12 units.

**Enter Side A**: Input**5**into the "Side A" field.**Enter Side B**: Input**12**into the "Side B" field.**Calculate**: Press the "Calculate Hypotenuse" button.

**Step-by-Step Calculation**:

Find the square of **Side A**:

Find the square of **Side B**:

Add the squares of A and B:

Take the square root of the sum: