The protractor scale on the triangle can aid in drawing a bearing line on a chart, and the 90° angle is helpful when determining lines of position. One of our best selling navigation instruments, the Protractor Triangle with Handle is inscribed with contrast enhancing colors making it easier to use.
TRIANGLE PROTRACTOR PLUS
Each triangle is inscribed with contrast enhancing colors (red & black), plus a handle that holds a pencil, making it convenient and easy to use. High quality hardened stainless steel with polish finish with acid-etched color coded inch/metric graduations. Often used in a combination of two, our Protractor Triangle with Handle provides a straightforward method of plotting and performing chart work. Staedtler Triangle Protractor - STD5640845H. Using a ruler and protractor, draw a triangle in which one angle measures 110 degrees and the adjacent sides are of length 3 inches and 5.5 inches.
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