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They are the angles that are greater than 0 but less than 90 degrees

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Q: Which are the acute angle in triangle DEF?
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Related questions

How do you draw a triangle DEF that angle F measures 90 degrees?

It will be a right angle triangle with a 90 degree angle and 2 acute angles


If a triangle has one acute angle is the triangle acute?

yes, it only needs one acute angle out of the three to make it an acute triangle.


What is a triangle with all acute angle?

An acute triangle.


If one angle in a triangle is acute can the other two angle also be acute?

Yes. In this case a triangle is called an acute triangle.


If a triangle has one acute angle is the triangle necessarily acute?

No, an acute triangle must have all 3 angles under 90 degrees. A triangle can have an acute angle and still be a right triangle or an obtuse triangle.


Are two right triangle similar if an acute angle of one triangle is congruent to an acute angle of the other triangle?

Yes


Does and acute has a right angle and two acute angles?

no an acute triangle does not have a right angle. if it had a right angle, it would be called a right triangle. to be an acute triangle, the triangle needs two angles that are smaller than 90 degrees.


Does a triangle have a right acute and obtuse angle?

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


What is the difference between a right an acute and obtuse triangle?

A right triangle has one angle a right angle (90o) An obtuse triangle has one angle an obtuse angle (> 90o) An acute triangle has all angles acute (< 90o)


Can a triangle have a right angle and an acute angle?

No A right angle has 90 degree A triangle has 180 degreeYes, a right triangle has one right angle and two acute angles. The sum of the acute angles is 90°.


Can a triangle ever have a right angle and a acute angle?

Yes. If its a right angle there has to be an acute angle.


How can you determine if a triangle is acute obtuse or right triangle?

If all of the angles in a triangle are acute then it is an acute triangle. If one angle is right (or 90 degrees) then it is a right triangle. If one angle is obtuse then it is an obtuse triangle.