triangular ruler
triangular ruler, 삼각자
It's a triangular-shaped ruler used for measuring angles or drawing right angles. It's a tool frequently used in math class or drafting work.
It usually has 45-degree and 90-degree angles marked on it, making it easy to draw lines at precise angles. It's a particularly important tool in architecture and design work.
삼각형 모양의 자로, 각도를 재거나 직각을 그릴 때 사용해요. 수학 시간이나 제도 작업에서 많이 사용하는 도구입니다.
보통 45도와 90도 각도가 표시되어 있어서 정확한 각도로 선을 그리기 쉬워요. 건축이나 디자인 작업에서 특히 중요한 도구입니다.
The triangular ruler has a long history, having been used in ancient Egypt for the construction of pyramids. As a tool that symbolizes mathematical accuracy and the foundations of architecture, its importance remains unchanged even today.
Even with the advancement of digital tools these days, triangular rulers are still essential for basic design and in educational settings. Especially for students in architecture and engineering, they are recognized as a crucial tool for developing fundamental design skills.