Angles and Triangles

🔹 What Is It?

• A triangle always has angles that add up to 180 degrees.
  
  

• Triangles can be named by their angles (acute, right, obtuse) or their sides (scalene, isosceles, equilateral).
  
  

🧩 Clue to Remember

• Right = 90°
  
  

• Acute = less than 90°
  
  

• Obtuse = more than 90°
  
  

• All triangle angles = 180°
  
  

🔹 Example

If one angle is 90°, and the others are 45° each — it’s a right triangle.

💡 Why It Matters

Found in bridges, roofs, design work, and basic geometry reasoning.