Please help from 3 -5

Please help from 3 -5 class=

Verified Answer :

3 and 4 are regular polygon and 5 is not

  1. Pentagon and Regular Polygon
    4.Triangle and Regular Polygon
    5.Square and Triangle Put together not a Regular Polygon
    3 explanation how i got the answer is cause the pentagon is well a pentagon so it would be a regular polygon
    4. Explanation how i got the answer is cause the triangle is well still a triangle so it too would be a regular polygon.
    5. Explanation how i got the answer is cause the Square and Triangle are 1 shape so it can not be a regular polygon. 

    Does that make sense in how i got it ?
    Good Luck Hope this helps.