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2 years ago

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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.

2 answers:

aalyn [17]2 years ago

4 0

Number 2 an angle is straight if and only if its measure is 180

Sergio [31]2 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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