3•what kind of angle does an acute triangle have?
All interior angles in an acute triangle are less than 90° (acute angles).
4•what kind of angle does a right triangle have?
One interior angle is equal to 90° (right angle), and the remaining 2 interior angles are less than 90° (acute angles).
5•what kind of angle does an abtuse triangle have?
One interior angle is greater than 90° (obtuse angle), and the remaining 2 interior angles are less than 90° (acute angle).
