Vocab Chapter 4

Question 1

dication

Answer 1

change size but not shape

Question 2

isometry

Answer 2

a transformation that produces a congruent afterimage. also called a rigid transformation

Question 3

acute triangle

Answer 3

3 acute angles

Question 4

equiangular triangle

Answer 4

three congruent angles

Question 5

right triangle

Answer 5

one right angle

Question 6

obtuse triangle

Answer 6

one obtuse angle

Question 7

equilateral triangle

Answer 7

3 congruent sides

Question 8

isosceles triangles

Answer 8

2 congruent sides

Question 9

scalene triangle

Answer 9

lack of congruent sides

Question 10

auxiliary line

Answer 10

line added to add proof

Question 11

corollary

Answer 11

theorem coming from another theorem

Question 12

interior

Answer 12

all points inside a figure

Question 13

exterior

Answer 13

all points outside a figure

Question 14

interior angle

Answer 14

formed by 2 sides of a triangle

Question 15

exterior angle

Answer 15

formed by 1 side of a triangle and extension of an adjacent side

Question 16

remote interior angle

Answer 16

not adjacent to the exterior angle

Question 17

corresponding angles/sides

Answer 17

the same position in 2 polygons

Question 18

congruent polygons

Answer 18

corresponding angles/sides are congruent