illustrates the equivalences of: (a) the statement and its contrapositive; and (b) the converse and inverse of a statement
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If two angles are supplementary, then they have a sum of 180. Is the inverse true?no, if angles don't add to 180, they can still be supplementary
no, Supplementary angles add to 90
Yes, if two angles are not supplementary, then they do not add to 180
yes, supplementary angles add to less than 180
