What is the degree measurement of a right angle?
One right angle is degrees.

One right angle is 90 degrees. It serves as the cornerstone of geometry, marking a perfect quarter turn or the intersection of perpendicular lines. This angle is everywhere, from the corners of your favorite book to the edges of a window frame—essentially a geometry superhero!

You know what’s interesting? The concept of right angles dates back to the ancient Greeks, particularly to Euclid, who rigorously defined it in his famous work “Elements.” They didn’t just use it in geometry; it also influenced architecture and engineering. Designed for stability and balance, right angles have built the foundations of mighty structures throughout history, and they still do today!