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garik1379 [7]
3 years ago
12

Is the following statement a good definition? Why?

Mathematics
2 answers:
JulijaS [17]3 years ago
4 0

Answer:

The correct option is D.

Step-by-step explanation:

An an angle is called an obtuse angle if the measure of angle is lies between 90° and 180°. The angle θ is an obtuse angle if

90^{\circ}

The given statement is "An obtuse angle is an angle whose measure is greater than 90°."

It is an false statement, because all angles whose measure is more than 90°, are not an obtuse angle.

For example the angle 200° is more than 90° but not less than 180°, therefore the angle  200° is not an obtuse angle. The angle 180° is not an obtuse angle.

Therefore option D is correct.

Zarrin [17]3 years ago
3 0
<span>D No, it is not. A straight angle has a measure greater than 90°, but it is not an obtuse angle.
The sentence should say: </span>An obtuse angle is an angle whose measure is greater than 90° but less than 180° 
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