Unit 9

Question 1

acute angle

Answer 1

an angle measuring less than 90o

Question 2

angle

Answer 2

a figure formed by 2 rays that share a common endpoint

Question 3

angle congruency marks

Answer 3

angle marks indicating angles of the same

measure

Question 4

area

Answer 4

the number of square units needed to cover a surface

Question 5

bases of a right rectangular prism

Answer 5

any congruent, opposite, and parallel

faces shaped like rectangles; exactly 3 possible sets

Question 6

congruent

Answer 6

having the same size and shape

Question 7

edge

Answer 7

the line segment where two faces of a solid figure meet

Question 8

equation

Answer 8

a number sentence that uses the equal sign to show two

expressions are equivalent

Question 9

equiangular

Answer 9

all angles in a polygon are congruent in measure

Question 10

equilateral

Answer 10

all side lengths of a polygon are congruent in measure

Question 11

face

Answer 11

a flat surface of a three-dimensional solid figure

Question 12

height of a rectangular prism

Answer 12

the length of a side that is perpendicular to

both sides

Question 13

obtuse angle

Answer 13

an angle that measuring more than 90o but less than 180o

Question 14

polygon

Answer 14

a closed figure made of line segments

Question 15

prism

Answer 15

a three-dimensional figure containing two congruent and parallel faces
that are polygons