Question

Which Biconditional is not a good definition

A. three points are colinear if and only if they line on the same line
B. An angle is obtuse if and only if it measures is greater than zero
C. An angle straight if and only if it measure is 180
D. Two line segments are congruent if and only if they are the same length.

Answer 1

Hi There!!

I think your answer is B. An angle is obtuse if and only if it measures is greater than zero...

Hope This Helps!!

`Brazts`