No, not in plane (Euclidean) geometry.
Yes. In this case a triangle is called an acute 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)
One acute angle
No. An acute triangle has to have three acute angles. A right triangle has to have one 90 degree angle.
No, not in plane (Euclidean) geometry.
yes, it only needs one acute angle out of the three to make it an acute triangle.
Yes. In this case a triangle is called an acute 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)
Yes
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.
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.
a right triangle has one right angle and two acute angles
50 degrees
One 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°.
None. An acute triangle is one in which all angles are acute. An obtuse triangle is one in which one of the angles is obtuse. A right angled triangle is one in which one angle is a right angle (90o)