1.
Converse: If a polygon has four sides,then it is rectangle.
Inverse: If a polygon is not rectangle,then it doesnt have four sides.
Contrapositive: If a polygon doesnt have four sides,the its not rectangle.
2.
Converse: If you are vertebrate, then you are a human.
Inverse: If youre not a human,then youre not vertebrate.
Contrapositive: If youre not vertebrate,then youre not human.