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Which biconditional is NOT a good definition?
A; An angle is obtuse if and only if its measure is greater than 180.<<<<<<
B; An angle is a right angle if and only if its measure is 90
C; An angle is acute if and only if its measure is between 0 and 90
D; Two angles are congruent if and only if their measures are the same.

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  1. is this correct or nah?

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  2. I may not be a teacher, but you are wrong. It is C.

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  3. Hope this helps!

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  4. hope your right!

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  5. A is the correct answer.
    An obtuse angle has measure greater than 90, not 180.

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