Unit 2B Vocabulary Hicks Geometry

How we state that a triangle is congruent to another triangle.

• Similarity statement

• Congruence statement

• Proof

• CPCTC

When three sides of a triangle are congruent to the corresponding sides of another triangle, the triangles are said to be congruent.

• SSS Congruence

• SAS Congruence

• ASA Congruence

• AAS Congruence

When two sides of a triangle and its included angle are congruent to the corresponding sides and included angle of another triangle, the triangles are said to be congruent.

• SSS

• SAS

• ASA

• AAS

When two angles and the included side of a triangle are congruent to two angles and the included side of another triangle, the triangles are said to be congruent.

• SSS

• SAS

• ASA

• AAS

When two angles and the non-included side of a triangle are congruent to two angles and the non-included side of another triangle, the triangles are said to be congruent.

• SSS

• SAS

• ASA

• AAS

If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and leg of another right triangle, the triangles are congruent.

• SSS

• SAS

• AAA

• HL

The exterior angle is equal to the sum of the two opposite interior angles.

• Exterior angle theorem

• Interior angle theorem

• Vertical angle theorem

• Right angle theorem

Two of the sides of a triangle are of equal length.

• Equilateral

• Isosceles

• Equiangular

• Scalene

Corresponding Parts of Congruent Triangles are Congruent

• CPCTC

• COPACT

• CRETC

• CONPC

A quadrilateral with two sets of parallel sides

• trapezoid

• parallelogram

• kite

• triangle