三平方の定理

a² + b² = c² を使用して、直角三角形の欠けている辺を計算します。

The Pythagorean Theorem is one of the most famous and useful rules in geometry. It describes the fundamental relationship between the three sides of a right-angled triangle. Whether you are an architect calculating roof pitches, a navigator determining distance, or a student solving a math problem, this theorem is an essential tool. Our Pythagorean Theorem Calculator allows you to input any two known sides of a right triangle to find the length of the third side instantly. It handles both legs (a and b) and the hypotenuse (c), providing precise decimal results.

c (斜辺)

2つの辺を入力して、3つ目の辺を求めます。

欠けている辺

Resulting side length is 5

c = √(a² + b²) = √(3² + 4²)

使い方

The calculator identifies which two sides you have provided. If you provide the two legs, it squares them, adds them together, and takes the square root to find the hypotenuse. If you provide the hypotenuse and one leg, it subtracts the square of the leg from the square of the hypotenuse and takes the square root to find the missing leg.

計算式

a² + b² = c²

Calculation Examples

1. **Finding Hypotenuse**: Legs are 3 and 4. 3² + 4² = 9 + 16 = 25. √25 = **5**. 2. **Finding a Leg**: Hypotenuse is 13, one leg is 5. 13² - 5² = 169 - 25 = 144. √144 = **12**.

Why use this tool in your daily life?

Triangles are everywhere in our built world. This service is the standard for ensuring your corners are square and your distances are correct, making it a mandatory tool for construction and design.

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三平方の定理

欠けている辺

使い方

計算式

Calculation Examples

Why use this tool in your daily life?

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Algebraic Equation Solver – Step-by-Step Logic | CalcTools

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