an arrowhead has 4 angles. but no, you can't make an arrowhead out of only right angles.
yes
No
4 right angles, no other angles.
An arrowhead perhaps
The arrowhead has zero right angles.
an arrowhead has 4 angles. but no, you can't make an arrowhead out of only right angles.
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
yes
The 'classic' arrow-head shape has 7 angles.
Two or three.
None they all ALL different!
No
All apart from square, rhombus, kite and arrowhead.
It has one pair of opposite angles that are equal but not two.
An arrowhead is a quadrilateral and in common with all quadrilaterals its 4 interior angles add up to 360 degrees.