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Mathematics 19 Online
OpenStudy (anonymous):

Rewrite the definition “All right angles measure 90 degrees” as a biconditional statement using “if and only if”.

OpenStudy (anonymous):

what does this mean ?

OpenStudy (kinggeorge):

It's essentially asking for a more logically formal definition of right angles. i.e., an angle is a right angle if and only if it measures 90 degrees.

OpenStudy (anonymous):

gotcha

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