State the converse, inverse and contrapositive of if triangle ABC is equilateral, then its three angles are congruent propositions. Stating it as a conditional, wherever necessary.

Explanation

If `Delta` ABC is equilateral , then its three angles are congruent.
Converse :If the three angles of the `Delta` ABC are congruent, then it is equilateral.
If `Delta`ABC is not equilateral, then its three angles are not congruent.
Contrapositive : If the three angles of the Delta ABC are not congruent, then it is not equilateral.