Chap. 4 Vocabulary

Question 1

_____ _____ have congruent corresponding parts - their matching sides and angles.

Answer 1

congruent polygons

Question 2

If the three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent by _____.

Answer 2

SSS

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 by _____.

Answer 3

SAS

Question 4

If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent by _____.

Answer 4

ASA

Question 5

If two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle, then the triangles are congruent by _____.

Answer 5

AAS

Question 6

The congruent sides of an isosceles triangle are its _____

Answer 6

legs

Question 7

The third, non-congruent side of an isosceles triangle is the _____

Answer 7

base

Question 8

The two congruent legs of an isosceles triangle form the _____ _____.

Answer 8

vertex angle

Question 9

The two angles not formed by the congruent sides of an isosceles triangle are the _____ _____.

Answer 9

base angles

Question 10

A _____ is a theorem that can be proved easily using another theorem.

Answer 10

corollary

Question 11

In a right triangle, the side opposite the right angle is called the _____.

Answer 11

hypotenuse

Question 12

The two sides in a right triangle that are connected by the right angle are called the _____.

Answer 12

legs

Question 13

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

Answer 13

HL