The following conditional statement is true.All of the sides of a quadrilateral are congruent if it is a
rhombus.Which of the following statements must also be true?a) If not all of the sides of a quadrilateral are congruent,
then it is not a rhombus.b) If a quadrilateral is not a rhombus, then all of its sides
are not congruent.c) If a quadrilateral is a rhombus, then not all of its sides
are congruent.d) If all of the sides of a...