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Complementary angles are two angles whose sum is 90 degrees.

An obtuse angle is greater than 90 degrees (right angle) and less than 180 degrees (straight angle).

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Q: Can a complementary angle be obtuse?
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Why obtuse angle and acute angle can not be complementary?

An obtuse angle has no complementary angle.


Is an acute angle and an obtuse angle sometimes always or never complementary?

Two angles are complementary when they add up to exactly 90 degrees. An obtuse angle is by definition greater than 90 degrees. Therefore, an obtuse angle cannot have a complementary angle. So an obtuse angle and an acute angle are never complementary.


Can an obtuse angle be both complementary and supplementary?

No, an obtuse angle cannot be both complementary and supplementary because the measures of complementary angles add up to 90 degrees, while the measures of supplementary angles add up to 180 degrees. An obtuse angle has a measure greater than 90 degrees, so it can only be supplementary, not complementary.


Can a obtuse angle have a complement?

No because complementary angles add up to 90 degrees and an obtuse angle is greater than 90 degrees.


What is the measurement of an acute angle if the obtuse angle is 145 degrees?

Complementary angles total 180 degrees. So if the obtuse angle is 145 degrees, the acute angle is 35 degrees.


Can one of two complementary angles be obtuse?

No, one of two complementary angles cannot be obtuse, because only two acute angles that add up to 90 degrees are complementary and that an obtuse angle on its own is greater than 90 degrees.


What are the types of geometric angles?

Right angle, obtuse angle, acute angle, supplementary angle, complementary angle, interior angle, exterior angle, adjacent angle


Can the complment of an angle be obtuse?

No because complementary angles add up to 90 degrees


Is it possible for an obtuse angle to have a complementary angle?

No. Not unless you allow angles with negative measures (which may be appropriate in some circumstances).


What is the angle that measures 170 degrees?

It is an obtuse angle. It is an obtuse angle. It is an obtuse angle. It is an obtuse angle.


Can you find a complementary to giver a angle?

It depends. If your angle is greater than 90 degrees (obtuse or reflex), you must allow angles with negative measure.


If angle a and b are complementary and angles c and d are supplementary then d is what angle?

It can have any value in the range (0, 180) so it can be acute, right or obtuse.