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Divide the line segment [ab] into three equal parts. Draw the line segment [ab]. Through a draw a line at an acute angle to [ab]. On this line use circle arcs of the same radius to mark off three segments of equal length [ar], [rs] and [st]. Join t to b.
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Divide the line segment [ab] into three equal parts • Draw the line segment [ab]. • Through a draw a line at an acute angle to [ab]. • On this line use circle arcs of the same radius to mark off three segments of equal length [ar], [rs] and [st]. • Join t to b. • Throuth s and r draw line segments parallel to [tb] to meet [ab] at d and c. • Now |ac|=|cd|=|db| a c d b r s t
