Basic Features of a Triangle
• 3 Straight Sides: It is made of three straight lines connected end-to-end.
• 3 Corners (Vertices): The points where two straight lines meet are called vertices.
• 3 Interior Angles: It has three inside angles.
• The Magic Number 180°: No matter how big or small a triangle is, if you add up all three of its inside angles, they always equal 180 degrees.• Equilateral Triangle: All 3 sides are the exact same length, and all 3 angles are equal (60 degrees each).
• Isosceles Triangle: Has 2 sides that are the same length (and 2 equal angles) and 1 different side.
• Scalene Triangle: All 3 sides have completely different lengths, and all 3 angles are different.