Question

What is the inverse of the statement shown below?

“In an isosceles triangle, the base angles are equal.”

If the triangle is isosceles, then the base angles of the triangle are equal.

If the triangle is not isosceles, then the base angles of the triangle are not equal.

If the base angles of a triangle are not equal, then the triangle is not isosceles.

If the base angles of a triangle are equal, then the triangle is an isosceles triangle.

Answer 1

I think it is the third option, If the base angles of a triangle are not equal, then the triangle is not isosceles. But I'm not sure

Answer 2

Rewrite the statement “In an isosceles triangle, the base angles are equal” as an if-then statement.
If it's an isosceles triangle, then the base angles are equal.

Inverse: If it's not an isosceles triangle, then the base angles are not equal.

Inverse implies 'If not p, then not q.'
where p = isosceles triangle and q = equal base angles.

Great website if you need clarification.
http://hotmath.com/hotmath_help/topics/converse-inverse-contrapositive.html