Skip to content

Mulkek

Math is simple

Menu
  • Home
  • About
  • All Lessons (Library)
  • Linear Algebra
  • Coordinate Geometry
  • Pythagorean Theorem
  • Area and Volume
  • Triangles
  • Polygons
  • Circle
  • Algebra
  • Calculus
  • Trigonometry
  • Contact Us
  • Privacy Policy
  • Cookie Policy

Pythagoras Theorem (a² + b² = c²) – Visual Proof 2

This video is on YouTube.

▶️ Open the video

To watch it here on the page, please allow Marketing cookies. Change consent

This lesson shows a visual proof of the Pythagorean Theorem (\(a^2 + b^2 = c^2\)), one of the most famous formulas in geometry.

Most students know the formula, but do you know why it works? In this lesson, we break it down with a simple, visual explanation.

❖ The Pythagorean Theorem applies to any right-angled triangle and states that:

The square of the hypotenuse is equal to the sum of the squares of the other two sides.

For example, if triangle \(ABC\) has a right angle at \(B\), then:

\((AB)^2 + (BC)^2 = (AC)^2\)

where \(AC\) is the hypotenuse (the longest side opposite the right angle).

❖ The hypotenuse is always the longest side and lies opposite the 90° angle.

✅ This lesson is perfect for students and learners looking for a clear, easy-to-follow proof. Whether you’re preparing for a test or reviewing geometry basics, this explanation makes the concept simple and visual.

© Mulkek 2026. Powered by WordPress

Manage Consent

We use essential cookies and may use third-party services such as YouTube and advertising partners. You can manage your preferences at any time.

Functional Always active
These cookies are necessary for the website to function properly and cannot be disabled.
Preferences
These cookies store your preferences, such as consent settings.
Statistics
The technical storage or access that is used exclusively for statistical purposes. We do not currently use statistical tracking cookies.
Marketing
These cookies are used to display advertisements and enable embedded services such as YouTube videos. They may be used to personalize ads and measure their performance.
  • Manage options
  • Manage services
  • Manage {vendor_count} vendors
  • Read more about these purposes
View preferences
  • {title}
  • {title}
  • {title}