Protractor Triangle without Handle #103

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Often used in a combination of two, our Protractor Triangle provides a straightforward method of plotting and performing chart work. Each triangle is inscribed with black markings. 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. 7-3/4" sides x 11" (19.69cm x 27.94cm) hypotenuse Protractor scale allows easy alignment with chart meridian in any direction Direction is maintained as one triangle is slid along the other to desired position 90° angle helps determine lines of position Made from clear, durable vinylite Lifetime warranty Show more