derékszög

Etymology
From ,

Noun

 * 1)  right angle an angle of exactly 90°
 * 2) square L- or T-shaped tool used to place objects or draw lines at right angles
 * 1) square L- or T-shaped tool used to place objects or draw lines at right angles
 * 1) square L- or T-shaped tool used to place objects or draw lines at right angles