Which biconditional is NOT a good definition?

Mathematics

2 answers:

Lady_Fox [76]2 years ago

8 0

The answer is D because and obtuse angle is 91 degrees or more

Vladimir79 [104]2 years ago

6 0

<h2>Answer:</h2>

Option: d is the correct answer.

d. An angle is obtuse if and only if its measure is greater than 180°

<h2>Step-by-step explanation:</h2>

<u>Acute angle--</u>

An angle is acute if and only if the measure of the angle is strictly less than 90 degree.

<u>Right angle--</u>

An angle is right angle if and only if the measure of the angle is exactly equal to 90 degree.

<u>Obtuse angle--</u>

An angle is said to be obtuse if and only if the measure of the angle is strictly greater than 90 degree and strictly less than 180 degree.

<u>Congruent angles--</u>

Two angles are said to be congruent if and only if both the angles have the same measure.

Hence, the biconditional which is NOT a good definition is:

Option: d

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