unit 3

Question 1

A triangle with no equal sides is called a(n) _____ triangle.

Answer 1

scalene

Question 2

The sum of the measures of the interior angles of a triangle is _____ degrees.

Answer 2

180

Question 3

A(n) _______ angle of a triangle is equal to the sum of the two remote interior angles.

Answer 3

exterior

Question 4

A three sided regular polygon is called _______.

Answer 4

an equilateral triangle

Question 5

A _______ is a four sided polygon.

Answer 5

quadrilateral

Question 6

A polygon with congruent angles and congruent sides is called a________.

Answer 6

regular polygon

Question 7

what can be an isosceles triangle

Answer 7

A scalene triangle

Question 8

If a triangle is a right triangle, then the other two angles must be______.

Answer 8

acute

Question 9

The sum of the exterior angles of a polygon is always ________ degrees.

Answer 9

360

Question 10

How many diagonals can be drawn from one vertex of an octagon?

Answer 10

5

Question 11

The sum of the measures of the interior angles in a polygon is 540 degrees. How many sides does the polygon have?

Answer 11

5

Question 12

The measures of the angles in a triangle are x, 2x, and 3x. The triangle is

Answer 12

right

Question 13

The exterior angle measure of a regular polygon is 20 degrees. How many sides does the polygon have?

Answer 13

18

Question 14

Two lines that do not intersect are parallel. always/sometimes/never

Answer 14

sometimes

Question 15

Two coplanar lines that are perpendicular to the same line are parallel. always/sometimes/never

Answer 15

always

Question 16

If two lines are cut by a transversal, the corresponding angles are equal in measure.

Answer 16

sometimes

Question 17

When two lines are cut by a transversal, if the alternate interior angles are equal in measure, then the lines are parallel.

Answer 17

always

Question 18

Two lines parallel to the same plane are parallel to each other.

Answer 18

sometimes

Question 19

Perpendicular lines intersect to form right angles.

Answer 19

always

Question 20

Two adjacent angles whose exterior sides are opposite rays are complementary.

Answer 20

never

Question 21

Through a point not on a line, one and only one line can be drawn parallel to the given line.

Answer 21

always

Question 22

cut into two equal parts

Answer 22

bisect

Question 23

If two lines are perpendicular, then they form

Answer 23

right angles

Question 24

If two lines intersect, then the vertical angles formed must be

Answer 24

both equal in measure

Question 25

All right angles are _____ degrees.

Answer 25

90

Question 26

A pair of angles whose sum is 90 degrees are called

Answer 26

complementary

Question 27

Two adjacent, supplementary angles form a

Answer 27

line

Question 28

The vertex of ∠WON is

Answer 28

O

Question 29

The measure of an obtuse angle is

Answer 29

greater than 90 and less than 180 degrees

Question 30

Which of the following angles has a measure that is less than 90 degrees?

Answer 30

acute

Question 31

An angle is formed by the union of two _________.

Answer 31

rays

Question 32

An angle with a measure of _______ is formed by two opposite rays.

Answer 32

180°