Me !

i have until tomorrow to get all of this stuff done, you so so so much i. advance!

If an angle measures 90 then, it is a right angle.  2.if it is a right angle then, the angle measures 90.  I dont know the last two.

1. If an angle measures 90 degrees, then it is a right angle. T
2. If an angle is a right angle, then it measures 90 degrees. T
3. If an angle does not measure 90 degrees, then it is not a right angle. T
4. If an angle is not a right angle, then the angle does not measure 90 degrees. T

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You have to give us options