직각
Also known as square angle
90° angle (π/2 radians): an angle that bisects the angle formed by two halves of a straight line
AI overview
A right angle is a 90-degree angle formed when two lines meet at a perfect quarter-turn, dividing a straight line into two equal parts. Right angles matter because they're fundamental to construction, design, and mathematics—they appear everywhere from building corners to coordinate systems and help us measure and organize space precisely.
AI-generated from the Wikipedia summary — may contain errors.