Triangles and Area

• Triangle - has three sides and three angles
• Equilateral triangle - 3 equal sides, 3 equal angles and always 60 degrees

  
• Scalene triangle - no equal sides and angles

  
• Isosceles triangle - 2 equal sides, 2 equal angles

  
• Right triangle - triangle that as a 90-degree angle

  
• Obtuse triangle - triangle that has an angle more than 90 degrees

  
• Acute triangle - triangle that has less than 90-degrees