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🔷Honors Geometry
Key Terms

150 essential vocabulary terms and definitions to know for your Honors Geometry exam

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π (pi)

A

Altitude Proportion
Altitude Theorem
Angle of depression
Angle of elevation
Angle of rotation theorem
Angle Sum Theorem
Angle-side relationship
Associative Property
Axiom
Axiomatic Systems

B

Basic Proportionality Theorem

C

Cartesian Coordinate System
Cartesian Plane
Center of dilation
Center of rotation
Centroid Property
Centroid Theorem
Circumradius
Circumscribed Figures
Commutative Property
Commutative property of vector addition
Compass and straightedge
Congruence of Corresponding Angles
Congruent Circles
Congruent Corresponding Angles
Congruent Figures
Congruent markings
Congruent Segments
Congruent sides
Constructing Perpendicular Lines
Construction of a Bisector
Convex polygon
Cubic units

D

Directrix Equations
Distributive Property

E

Equation of a tangent line
Euclidean Space
Euler's Line
Euler's Theorem
Explementary Angles
Exterior Angle Theorem

F

Finding Missing Sides
Finding the Centroid
Flowchart Proof
Foot of the perpendicular

G

Geodesics
Geometric Proofs
Great circle
Grid transformations

H

Height of a Trapezoid
Heron's Formula for Area
Hinge Theorem
Hypotenuse

I

Indirect variation
Interior Angles
Isometric Drawings
Isosceles Triangle
Isosceles Triangle Theorem

L

Leg-leg
Legs of a trapezoid
Legs of a Triangle

M

Median of a trapezoid

N

Napoleon's Theorem

O

Oblique Cone
Oblique Cylinder
Obtuse Angle
Obtuse Triangle
Opposite angles are congruent
Opposite side
Opposite Sides Parallel
Order of Rotation
Order of Transformations
Ordered Pair
Orthocenter Property