Is the following statement a good definition? Why?

An obtuse angle is an angle whose measure is greater than 90°.

A No, it is not. The statement contains false information.

B Yes, it is. The definition is reversible.

C Yes, it is. All obtuse angles have measures greater than 90°.

D No, it is not. A straight angle has a measure greater than 90°, but it is not an obtuse angle.

Question

Reuben Patrick

Mathematics

13 February, 02:47

Is the following statement a good definition? Why?

An obtuse angle is an angle whose measure is greater than 90°.

A No, it is not. The statement contains false information.

B Yes, it is. The definition is reversible.

C Yes, it is. All obtuse angles have measures greater than 90°.

D No, it is not. A straight angle has a measure greater than 90°, but it is not an obtuse angle.

+3

Answers (2)

Know the Answer?

Amanda Klein · Answer 1

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: An obtuse angle is an angle whose measure is greater than 90° but less than 180°

Yareli Irwin · Answer 2

Ya I think its a pretty good answer, but you should add some more information, like what degree an obtuse angle begins and ends.