man using sliding t-bevel to bisect an angle
Photo: Nedjelko Matura
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Bisecting an Angle

When mitering trim, you often need to divide an unusual angle in half. Copy the angle onto scrap wood with a sliding T-bevel. Draw an arc with a compass set on the tip of the V. Then draw intersecting arcs from the two points where the first arc hits the angle's sides. Bisect the angle with a line from the V to the intersection, copy it with the sliding T-bevel, and miter away.
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