Depends. Most of the time the angles are acute or obtuse
3
The arrowhead has zero right angles.
it has no acute angles
A kite, a parallelogram, many ordinary quadrilaterals with no specific names.
It depends on they type of arrowhead you have. If it is a arrowhead in the shape of a directional arrow, there are no obtuse angles. The most possible obtuse angles is 1.
Depends. Most of the time the angles are acute or obtuse
The 'classic' arrow-head shape has 7 angles.
A cone has no acute angles because a cone is a 3D shape and not a 2D.
There are many possible shapes with two acute angles.
Two or three.
4
A heart is not technically a geometric shape, but it depends on how you draw a heart. If the angles measure less than 90 degrees, they are acute angles.
I'm not sure but i think it might be 4 acute angles but i suggest you try a more accurate site.
The arrowhead has zero right angles.
it has no acute angles
there are three acute angles in an acute triangle, because there are three corners.