#71 · Triangles · Classes 6–10
Triangles
Types of triangles, their properties and the Pythagoras theorem for right triangles.
Triangles📐 Formula
Angle sum 180°; c² = a² + b² for right triangles
✏️ Worked example
Legs 5 and 12: hypotenuse 13 (5-12-13 triple).
🌍 Where it is used
Construction, carpentry and surveying.
❓ Quick check
Which is a Pythagorean triple?