A drafting triangle is a tool used in technical drawing to create precise angles. It is typically made of plastic or metal and comes in various sizes. The most common drafting triangles are the 30-60-90 degree and 45-45-90 degree types. They are used in combination with a T-square or ruler to draw straight lines at specific angles. Drafting triangles are essential for architects, engineers, and designers, helping them create accurate geometric shapes and angles in their technical drawings and blueprints.

英語での「drafting triangle」の定義と意味

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