The letter K. It has two acute angles, top and bottom between, the l and < and the inside angle of the < is a rightangle.
The letter 'W' has three acute angles.
The letter "K"
X and Y each have a pair of obtuse angles.
The letter "N" as two acute angles.
acute angle
K and R are two possibilities.
The letter 'W' has three acute angles.
The letter "K"
If you mean which alphabet letter, an L has one right angle; a T has a right and left acute angle.
M
There are two angles in the letter V. An acute angle (internal) and a reflex angle (external).
X and Y each have a pair of obtuse angles.
None. All are right-angles (90 degrees). An acute angle is less than 90 degrees and more than zero degrees. The single angle formed by the letter V is an acute angle.
Acute, obtuse, reflex.
Probably E - since it has four right-angles.
pizza slice, alphabet A etc.
The letter "N" as two acute angles.