In this video, we demonstrate a unique Pythagoras Theorem Model using cardboard, LEDs, and metal touch nails.
This DIY project shows how a² + b² = c² works in a right-angled triangle using an interactive lighting system.
Pythagoras Theorem
For any right-angled triangle:
a² + b² = c²
Where:
• a = one shorter side
• b = the second shorter side
• c = hypotenuse (longest side)
How the Model Works
This model uses touch-sensitive metal nails to light up the squares representing a², b², and c².
Touch Nail A → a² Square LED glows
Touch Nail B → b² Square LED glows
Touch Nail C → c² Square LED glows
Each square has its own LED circuit.
When you touch a nail, the circuit completes, and the LED inside the correct square lights up.
This helps students visualize the areas of a², b², and c² in a simple and interactive way.