Is the following statement a good definition? If so, write it as a biconditional. If not, explain why: An equilateral triangle is a triangle with three congruent sides.

Answer 1

Yes, the statement "An equilateral triangle is a triangle with three congruent sides" is a good definition. It can be written as a biconditional as follows:

An equilateral triangle is a triangle with three congruent sides if and only if a triangle has three congruent sides.