bisect
cut in half
A bisect is a line, plane, or shape that divides another shape into two equal or congruent parts. In geometry, this usually refers to dividing a line segment or angle into two equal parts. The term bisect comes from the Latin word bisectus, which means divided into two equal parts.
To bisect a line segment, you would draw a line perpendicular to the line segment that intersects it at its midpoint. This would divide the line segment into two equal parts.
To bisect an angle, you would draw a line from the vertex of the angle through its midpoint, creating two equal angles.
Bisecting shapes can also refer to dividing a shape into two congruent parts. For example, you could bisect a rectangle by drawing a line from one corner to the opposite corner, dividing it into two congruent triangles.
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