Westcott
Adjustable Triangle

Perfect for all your drawing and drafting needs, the Westcott 10 in. adjustable triangle permits tracing of angles from zero to 90 degrees. The inner graduations on arc give degrees of one angle while the outer row of figures gives degrees of the complimentary angle. The triangle includes traceable circles in sizes: 1/4 in., 1/2 in., 3/4 in. and 1 in. and is transparent for easy viewing on the page.