one
Just the one.
Just the one and the other two angles must then be acute angles
If its a triangle then just the one but if it is a square or a rectangle then 4 of them.
There is no such shape since an angle can always be added to any shape.
one
Two. Two acute angles in a right triangle.
3
0. A right triangle, by definition, will never include any obtuse angles.
2:.
One dummies.....
Just the one.
Just the one and the other two angles must then be acute angles
A triangle can have up to all three acute angles. An equilateral triangle has three- sixty degree angles, which are acute.
None
Only one of them
If its a triangle then just the one but if it is a square or a rectangle then 4 of them.