Chapter 4

Question 0

If two angles of one triangle are congruent to two angles of another triangle, then the third angles are congruent

Answer 0

Theorem 4-1

Question 1

Have congruent corresponding parts-their matching sides and angles. Matching vertices are corresponding vertices. When you name this list corresponding vertices in same order

Answer 1

Congruent polygons

Question 2

If three sides of one triangle are congruent to three sides of anther triangle then the two triangles are congruent

Answer 2

Side side side postulate 4-1

Question 3

If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle then the two triangles are congruent

Answer 3

Side angle side postulate 4-2

Question 4

If two angles and the included side of one triangle are congruent to the angles and the included side of another triangle the triangles are congruent

Answer 4

ASA postulate

Question 5

If two angles and a nonincluded side of one triangle are congruent to two angles and the corresponding non included side of another triangle, Then the triangles are congruent

Answer 5

AAS Theoram 4-2

Question 6

Congruent Parts of Congruent Triangles are Congruent

Answer 6

CPCTC

Question 7

Congruent sides of an isosceles triangle

Answer 7

Legs of an isosceles triangle

Question 8

The third side of the isosceles triangles

Answer 8

Base

Question 9

The angle that forms the two congruent sides

Answer 9

Vertex Angle

Question 10

The other two angles

Answer 10

Base Angles

Question 11

If two sides of a triangle are congruent then the angles opposite those sides are congruent

Answer 11

Isosceles Angle Theorem

Question 12

If two angles of a triangle are congruent then the sides opposite the angles are congruent

Answer 12

Converse of Isosceles Angles Theorem

Question 13

The bisector of the vertex angles of an isosceles triangle is the perpendicular bisector of the base

Answer 13

MEMORIZE Theorem 4-5

Question 14

If a triangle is equilateral then the triangle is equialngular

Answer 14

Corollary to Theorem 4-3

Question 15

If a triangle is equalangular, the triangle is equilateral

Answer 15

Corollary to Theorem 4-4

Question 16

Longest side of a right triangle

Answer 16

Hypotenuse

Question 17

The two sides of a right triangle

Answer 17

Legs of a right triangle

Question 18

If the hypotenuse an a leg of one right triangle are congruent to the hypotenuse and leg of another right triangle then the triangles are congruent

Answer 18

HL theorem