No it's not possible at all.
no, a square consists of all right angles
Yes providing that the other 2 angles are acute
Yes. Every triangle with an obtuse angle must have two acute angles.
Yes providing that the other two angles are acute
Yes if they are right angles
show the drawing
No it's not possible at all.
You can draw a triangle with two obtuse angles in a sphere
no, a square consists of all right angles
Yes providing the other 2 angles are acute
Acute or obtuse: Yes. Straight: No.
Yes providing that the other 2 angles are acute
Yes. Every triangle with an obtuse angle must have two acute angles.
Yes providing its other two acute angles are of different sizes
Yes providing that the other two angles are acute
Obtuse