Of course, this is not the least amount of components required to construct the letter A, but it is an accurate deconstruction and analysis. Any attempt at drawing a "perpendicular" line segment will prove futile due to the curve nature of most lines. That being said, the letter A has an overall curved shape. It has a right angle where two opposite sides meet at a point, called a "right angle corner". These two sides are called "opposite" because they connect to different parts of the letter (or figure). The word "corner" comes from the same Latin root as "right", so it means "correct angle". An "angle" is the space between two lines or angles. At each end of the right angle is another line or angle, which makes up the entire shape of the letter A. There are two types of angles: acute and obtuse. An "acute angle" is one that is less than 90 degrees, while an "obtuse angle" is one that is greater than 90 degrees. At the end of each side of the letter A is one acute angle and one obtuse angle. At the end of each branch of the letter A is one more acute angle.