There is three. if you look at M there is three corners that are small, therefore its a acute angle (angle that measures less than 90 degrees.)
3
2
As a capital letter M it has three angles
There is 3 acute angles in the letter M.
It has 3 interior angles
There are no angles: the only intersections are of curves.
It has three acute and three reflex angles.
4 angles
M
There are 3 right angles in the letter F
The letter "N" as two acute angles.
3 right angles.
There are no right angles in the letter "e".
Z has two acute angles and two obtuse angles.