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

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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.

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

An obtuse angle is larger than an acute angle.

An obtuse angle is larger than a acute angle

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

No, an obtuse triangles has one obtuse angle and two acute angles. If a triangle has an obtuse angle, it is considered obtuse and cannot be acute.

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.

The measure of the obtuse angle would then be double that of the acute angle.

Acute is an angle under 90o and obtuse is an angle over 90o

obtuse

yes. to be and acute angle, all angles must be acute. Obtuse angles only one angle has to be obtuse. Right angles only need one too. Acute has to have every angle to be acute, if one angle is obtuse or right, it's automatically no an acute Angle anymore.

an obtuse angle is wider than an acute angle...(:

An acute angle is under 90 degrees, an obtuse angle is over 90 degrees.

Yes . Triangle have right acute and obtuse angle except compelete angle.

115 degrees is an obtuse angle

That is an acute angle. An obtuse angle is not acute.

is the top if pizza hut in acute or obtuse angle

An obtuse angle is an angle more than 90 degrees but an acute angle is an angle less than 90 degrees.

It is an obtuse triangle having 1 obtuse angle and 2 different acute angles Or it is an isosceles triangle having 1 obtuse angle and 2 equal acute angles

Obtuse.

obtuse

None. An acute angle is smaller than an obtuse angle. *does, not dose, btw. =)

Acute angle = <90 degrees Right angle = 90 degrees Obtuse angle = >90 degrees To answer your question, obtuse angle is larger.

They can make an obtuse angle, a straight angle or a reflex angle.

A right angle is considered neither an acute nor an obtuse angle. It's just a right angle.