Which statement represents the biconditional statement of the conditional statements?

If the measures of two angles have a sum of 180º, then the angles are supplements.

If two angles are supplements, then their measures have a sum of 180º.



The measures of two angles do not have a sum of 180º if and only if the angles are not supplements.
The measures of two angles have a sum of 180º if and only if the angles are supplements.
The measures of two angles do not have a sum of 180º if and only if the angles are supplements.
The measures of two angles have a sum of 180º if and only if the angles are not supplements.
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Respuesta :

The measures of two angles have a sum of 180º if and only if the angles are supplements. This statement is true.

A biconditional statement has 2 parts : a conditional statement that states "If hypothesis, then conclusion" and a converse statement which states " If conclusion, then hypothesis" . When both these parts are true, then it is called a biconditional statement.