Tangency, ContinuedTo draw an arctangent to twolines at acute orobtuse anglesTo draw an arc tangent to two lines at acute or obtuse angles, follow thistable:StepAction1Given two lines not at right angles (either greater than (obtuse) orless than (acute) 90°), draw lines parallel to the given lines at adistance that equals the desired radius of the required arc.2At the intersection of the parallel lines (C), draw perpendicularlines to locate tangent points T.3With C as the center and R as the radius of the required arc, drawthe required arc between the points of tangency.Figure 2-30 shows a tangent arc between acute and obtuse angles.Figure 2-30.—Tangent arcs for acute and obtuse angles.Continued on next page2-31
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