Lecture notes

Pythagorean theorem

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Module
Wiskunde

Institution
2e Graad

The Pythagorean Theorem is a fundamental principle in geometry, named after the ancient Greek mathematician Pythagoras. It describes the relationship between the sides of a right triangle and is a cornerstone concept in mathematics and its applications. This study guide aims to provide a comprehens...

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Uploaded on February 24, 2024
Number of pages 2
Written in 2023/2024
Type Lecture notes
Professor(s) Pieter
Contains All classes

solving
geometry

Institution Secondary school
Education 2e graad
Module
Wiskunde
School year 3

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**Study Guide: Pythagorean Theorem**

**Introduction:**

The Pythagorean Theorem is a fundamental principle in geometry, named after the ancient Greek
mathematician Pythagoras. It describes the relationship between the sides of a right triangle and is a
cornerstone concept in mathematics and its applications. This study guide aims to provide a
comprehensive understanding of the theorem, its applications, and various proofs.

**1. Statement of the Theorem:**

- The Pythagorean Theorem states that in a right triangle, the square of the length of the
hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of
the other two sides.

- Mathematically, if \( a \) and \( b \) are the lengths of the legs of the right triangle, and \( c \) is
the length of the hypotenuse, then the theorem can be expressed as: \( a^2 + b^2 = c^2 \).

**2. Understanding the Components:**

- **Hypotenuse:** The side opposite the right angle in a right triangle.

- **Legs:** The two shorter sides of the right triangle that form the right angle.

**3. Applications:**

- **Geometry:** Used extensively in geometry to find missing side lengths or angles in right
triangles.

- **Engineering:** Essential for calculating distances, dimensions, and angles in structures and
designs.

- **Navigation:** Utilized in navigation for determining distances between points.

- **Physics:** Applied in various physical problems involving forces, vectors, and motion.

**4. Pythagorean Triples:**

- Pythagorean triples are sets of three positive integers that satisfy the Pythagorean theorem. The
most common examples include:

- \( (3, 4, 5) \)

- \( (5, 12, 13) \)

- \( (8, 15, 17) \)

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