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zheka24 [161]
3 years ago
9

Which biconditional is not a good definition? A whole number is odd if and only if the number is not divisible by 2. An angle is

straight if and only if its measure is 180°. A whole number is even if and only if it is divisible by 2. A ray is a bisector of an angle if and only if it splits the angle into two angles.
Mathematics
2 answers:
aalyn [17]3 years ago
4 0
Number 2 an angle is straight if and only if its measure is 180

Sergio [31]3 years ago
3 0

The <em><u>correct answer</u></em> is:

A ray is a bisector of an angle if and only if it splits the angle into two angles.

Explanation:

To "bisect" means to split into two congruent pieces.  The statement we are given is that the ray splits the angle into two angles, not that it splits it into two <em>congruent</em> angles.  Thus this is not a good definition.

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