Triangles & Congruence
Triangle types, congruence tests, special lines in triangles, and triangle properties
All Terms (56)
- AA Similarity
- AAS Congruence
- Acute Triangle
- Altitude of a Triangle
- Angle Sum Property of a Triangle
- ASA Congruence
- Base of an Isosceles Triangle
- Base of a Triangle
- Centers of a Triangle
- Centroid
- Centroid Formula
- Ceva's Theorem
- Cevian
- Circumcenter
- Circumcircle
- Coincident
- Congruence Tests for Triangles
- Congruent
- Corresponding
- CPCFC
- CPCTC
- Equiangular Triangle
- Equidistant
- Equilateral Triangle
- Euler Line
- Exterior Angle Theorem
- Heron's Formula
- HL Congruence
- HL Similarity
- Hypotenuse
- Incenter
- Inradius
- Inscribed Circle
- Isosceles Triangle
- Leg of an Isosceles Triangle
- Leg of a Right Triangle
- Median of a Triangle
- Midsegment
- Obtuse Triangle
- Orthocenter
- Pythagorean Theorem
- Pythagorean Triple
- Right Triangle
- SAS Congruence
- SAS Similarity
- Scalene Triangle
- Semiperimeter
- Similar
- Similarity Tests for Triangles
- SSA
- SSS Congruence
- SSS Similarity
- Cevian Theorem
- Triangle
- Triangle Inequality
- Triangulation
More in Middle School Math
- Absolute Value5
- Algebra Vocabulary & General Concepts71
- Angles & Lines60
- Area & Perimeter18
- Arithmetic Operations & Exponents63
- Bounds, Intervals & Ordering10
- Circles22
- Conic Sections16
- Coordinate Geometry & Analytic Methods46
- Data Display & Visualization10
- Descriptive Statistics9
- Exponentials & Logarithms21
- Factors, Multiples & Divisibility23
- Financial Mathematics20
- Fractions & Decimals59
- Functions & Relations51
- Geometric Transformations16
- Geometry Foundations17
- Graph Transformations & Symmetry25
- Inference & Regression17
- Linear Equations & Graphs42
- Measurement, Estimation & Notation129
- Number Systems & Properties32
- Number Types & Classification66
- Platonic Solids & Polyhedra18
- Polynomials & Factoring46
- Precalculus Analysis & Methods11
- Probability & Counting17
- Probability Fundamentals16
- Quadrilaterals & Polygons66
- Regression & Correlation9
- Set Theory29
- Statistics & Data Displays27
- Surface Area & Volume46
- Variation & Proportion14
- Patterns Sequences Elementary0
- Data Display Elementary1
- Numeral Systems0
- Mathematical Constants1
- Number Theory & Modular Arithmetic14
- Inequalities & Interval Notation1
- number-systems-bases1
- mathematical-notation2
- reference-materials2
- math-vocabulary-reference1