Protractor Triangle with Handle

Using two 45° triangles provides an easy method of plotting and performing other chart work. With its protractor scales, this precision triangle is easily aligned in any direction with a chart meridian.
Direction is maintained as one triangle is slid along the other to the desired position.

• Durable, clear vinylite
• Short sides 7-1/2", 0.08" thick (Pythagorean Theorum will give you the length of the long side :)