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How to Trisect a Right Angle

This method is a simple geometric construction used to divide a right angle into three equal parts, a process called trisection. Using only a compass and straightedge, it shows how you can split a 90° angle into three smaller angles of 30° each without needing a protractor. The method works by drawing an arc across the arms of the right angle and then stepping off equal distances along that arc with the compass. When lines are drawn from the angle’s vertex through these marked points, the right angle is neatly divided into three equal sections. It’s a quick, accurate, and elegant way to understand the principles of geometric division and compass construction.