Unformatted text preview: Basic Constructions
Basic Constructions
Section 15 In a construction you use a straightedge and a compass to draw a geometric figure. Straightedge – a ruler with no markings on it Compass – a geometric tool used to draw circles and arcs A Perpendicular Lines
Perpendicular Lines Perpendicular lines are two lines that intersect to form right angles. The symbol ⊥ means “is perpendicular to”.
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B C l ⊥ AC AB ≅ BC A perpendicular bisector of a segment is a line, segment, or ray that is perpendicular to the segment at its midpoint Angle Bisector
Angle Bisector An angle bisector is a ray that divides an angle into two congruent coplanar angles. A
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BD is bisector of ∠ABC C ...
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