Chapter 4 Vocab

Question 1

The 2 angles adjacent to the base of an isosceles triangle.

Answer 1

Base Angles

Question 2

The angle opposite the base of an isosceles triangle

Answer 2

Vertex Angle

Question 3

If 2 sides of a triangle are congruent, then the angles opposite those sides are also are congruent.

Answer 3

Base Angle Theorem

Question 4

If 2 angles of a triangles are congruent then the sides opposite them are also congruent.

Answer 4

Converse of the Base Angles Theorem

Question 5

If a triangle is equilateral, then it is also equiangular.

Answer 5

Corollary to Theorem 4.6

Question 6

If a triangle is equiangular, then it is also equilateral.

Answer 6

Corollary to Theorem 4.7

Question 7

Two geometric figures with exactly the same size and shape.

Answer 7

Congruent Figures

Question 8

When two figures are congruent the angles that are in corresponding positions are congruent.

Answer 8

Corresponding Angles

Question 9

When two figures are congruent the sides that are in corresponding positions are congruent.

Answer 9

Corresponding Sides

Question 10

If 2 angles of one triangle are congruent to 2 angles of another triangle, then the third angles are also congruent.

Answer 10

Third Angles Theorem

Question 11

Every triangle is congruent to itself.

Answer 11

Reflexive Property of Congruent Triangles

Question 12

If ^ABC=^DEF=^ABC

Answer 12

Symmetric Property of Congruent Triangles

Question 13

^ABC=^DEF=^JKL then ^ABC=^JKL

Answer 13

Transitive Property of Congruent Triangles