7. Conditional statement is known as then statements in symbol is written as then a c. If q. then pl notp, then not d. If not q, then not p. 8 is a method of proof that shows contradiction a direct prool c. formal proof b. indirect proof d. two column proof 9. Select the statement that is the converse of "If two angles are supplementary, then the sum of their measures is 180°. a if the sum of the measures of two angles is 180°, then they are supplementary b. If two angles are not supplementary, then the sum of their measures is not 180'. e. If the sum of the measures of two angles is not 180", then they are not supplementary. d. If the sum of the measures of two angies is 180", then they are not supplementary,