an arrowhead has 4 angles. but no, you can't make an arrowhead out of only right angles.
No
yes
An arrowhead perhaps
A kite or an arrowhead.
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.
No
The arrowhead has zero right angles.
It has one pair of opposite angles that are equal but not two.
The 'classic' arrow-head shape has 7 angles.
360 degrees
yes
only if it is an equilateral triangle
Two or three.
An arrowhead perhaps
None they all ALL different!