not necessarily
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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.
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)
Right triangles have two acute angles, but that doesn't make them right. Having a right angle makes them right.
No. An acute triangle has to have three acute angles. A right triangle has to have one 90 degree angle.
A right triangle has a 90 degree angle and an acute triangle has an angle smaller than 90 degrees.