If a triangle has two congruent sides, the triangle is isosceles.
state the contrapositive of the conditional statement.
a) if a triangle is isosceles, then the triangle has two congruent sides.
b) if a triangle has two congruent sides, then the triangle is not isosceles.
c) if a triangle is not isosceles, then the triangle does not have two congruent sides.
d) if a triangle does not have two congruent sides, then the triangle is not isosceles.