Proofs Review

A line that intersects a segment and cuts a segment into two congruent segments. 

• Segment Bisector
• Angle Bisector
• Midpoint
• Reflexive Property

Tags

CCSS.HSG.CO.A.1

Two lines that will never intersect. 

• Parallel Lines
• Perpendicular Lines
• Medians
• Altitudes

When a segment or an angle is congruent to itself. 

• Addition Postulate
• Reflexive Property
• Perpendicular Lines
• Subtraction Postulate

A line that intersects an angle and cuts an angle into two congruent angles. 

• Right Angle
• Segment Bisector
• Angle Bisector
• Parallel Line

When two lines (or segments) intersect to form right angles. 

• Right Triangle
• Perpendicular Lines
• Vertical Angles
• Acute Angle

Tags

CCSS.HSG.CO.A.1

CCSS.4.G.A.1

A segment that goes from the vertex of a triangle and is perpendicular to the opposite side. 

• Perpendicular Bisector
• Median
• Altitude
• Centroid

A segment that goes from the vertex of a triangle to the midpoint of the opposite side. 

• Angle Bisector
• Median
• Altitude
• Perpendicular Bisector

A triangle with exactly 2 congruent sides and 2 congruent angles. 

• Obtuse Triangle
• Scalene Triangle
• Equilateral Triangle
• Isosceles Triangle

A triangle with a right angle. 

• Perpendicular Triangle
• Right Triangle
• Acute Triangle
• Obtuse Triangle

A triangle with 3 congruent sides and 3 congruent angles. 

• Equilateral Triangle
• Isosceles Triangle
• Right Triangle