Squares have only four right angles. Also, all of their sides are the same length. So if a square had an obtuse or an acute angle, it really wouldn't be a square at all.
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There are 3 acute angles and 2 obtuse angles in the letter A.
A
Always 2 acute angels, and the third an be acute, right, or obtuse.
All triangles have 3 sides and 3 interior angles that add up to 180 degrees and they are classed as follows:- Right angle triangle:a 90 degree angle and 2 acute angles Scalene triangle: 3 acute angles Obtuse triangle: an obtuse angle and 2 acute angles Isosceles triangle: 2 equal base angles and an apex angle Equilateral triangle: 3 equal angles each measuring 60 degrees