Geometry Concepts

Front

Midpoint

Back

Cuts a line segment into 2 congruent segments

Front

Line Segment Addition

Back

AP + PB = AB

Front

Line Segment Subtraction

Back

AB - AP = PB

Front

Line Bisector

Back

Cuts a segment into two congruent segments

Front

Angle Bisector

Back

Cuts an angle into 2 congruent angles

Front

Angle Addition

Back

∠ABD + ∠DBC = ∠ABC

Front

Angle Subtraction

Back

∠ABC - ∠DBC = ∠ABD

Front

Isosceles Triangle

Back

Two sides are congruent, then the opposite base angles are congruent

Front

Angles in a Triangle

Back

Add up to 180 degrees

Front

Exterior Angle Theorem

Back

∠D + ∠E + ∠EFG = ∠EFG