List of top Mathematics Questions on Understanding Quadrilaterals asked in CBSE Class VIII

What is a regular polygon? State the name of a regular polygon of 
  1. 3 sides 
  2. 4 sides 
  3. 6 sides
Given here are some figures.
Geometrical Shapes
Classify each of them on the basis of the following. 
  1. Simple curve 
  2. Simple closed curve 
  3. Polygon 
  4. Convex polygon 
  5. Concave polygon