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2-Dimensional Shapes (Polygons (Rest of the Polygons (Pentagon (5-sided),…

- - - - Obtuse (The largest angle is greater than 90 degrees but less than 180)
      - Right (The largest angle is 90 degrees)
      - Acute (The largest angle is less than 90 degrees)
    - - Scalene (No sides are congruent)
      - Isosceles (Only two sides are congruent)
      - Equilateral (All sides are congruent, also referred to as a regular triangle)
  - - - Parallelogram (opposite sides are parallel)
        
        Rectangle (Interior angles are 90 degrees)
        
        S
    - - Rhombus (All sides are Congruent)
        
        Square (Also referred to as a regular Quadrilateral)