Using the Speed Square as a Protractor (Degrees)
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What happens here
To use the speed square as a protractor, align the pivot point (the corner without numbers) at the desired point on the board. Rotate the square until the desired degree mark on the 'Degrees' scale aligns with the edge of the board. Draw a line along the straight edge of the square. Conversely, if you have an existing line, align the pivot point and one edge of the square with the existing line, then read the degree mark where the other edge intersects to determine the angle.
Goal: Accurately measure or mark angles in degrees.
Tools and materials
- Pencil M.L. Gordon Company — Drawing the angle line
- Speed Square — Measuring and marking angles in degrees
- Wooden Board — The surface on which to mark or measure angles
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