Pythagorean Theorem Visualizer

Drag the triangle vertices to explore a²+b²=c². Watch the squares on each side prove the theorem visually in real-time.

Controls

6.0
8.0

Calculations

a 6.0
b 8.0
c 10.0
36.0
64.0
100.0
a²+b² 100.0
Verified

The Math Behind It

The Theorem

  • For any right triangle: a² + b² = c²
  • a and b are the legs (sides forming the right angle)
  • c is the hypotenuse (longest side, opposite the right angle)
  • Only works for right triangles (one 90° angle)

Visual Proof

  • The square on side a has area a²
  • The square on side b has area b²
  • The square on the hypotenuse c has area c²
  • The sum of the two smaller squares equals the largest square

Famous Pythagorean Triples

a b c Type
3 4 5 Basic
5 12 13 Basic
8 15 17 Basic
7 24 25 Basic
6 8 10 3-4-5 × 2
9 12 15 3-4-5 × 3

Click any row to set that triple