Unit 1 Test Review

Match the following

• 
• 
• 

Tags

CCSS.HSG.CO.A.1

Match the following

• Reflexive Property

• Transitive Property

• AB = AB

• Symmetric Property

Tags

CCSS.HSG.SRT.B.5

Sort the angle measures

Groups:

(a) Acute

,

(b) Right

,

(c) Obtuse

,

(d) Straight

• 120

• 180

• 20

• 93

• 89

• 90

Answer explanation

Acute angles are between 0 and 90.

Right are 90.

Obtuse angles are between 90 and 180.

Straight angles are 180.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Label the following as complementary or supplementary.

a

b

supplementary

complementary

Answer explanation

Complementary angles are two angles that add up to 90 degrees.

Supplementary angles are two angles that add up to 180 degrees.

Tags

CCSS.7.G.B.5

Determine whether the statements are true or false.

Groups:

(a) True

,

(b) False

• 
  Lines that lie on the same line are known as coplanar.

• A ray is a part of a line that has two endpoints on one end and extends forever on the other end

• 
  Planes are two-dimensional.

• 
  A point represents a location in space or an exact location.

• 
  A plane is a flat surface made up of points that extend infinitely in all directions.

• 
  Points that lie on the same plane are referred to as coplanar.

Tags

CCSS.4.G.A.1

__________ reasoning is based on a set of observations.

(Deductive or Inductive)

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

__________ reasoning is based on a set of facts, definitions, theorems, or postulates.

(Deductive or Inductive)

Match the following

• 126

• x

• 33

• 54

Answer explanation

4x - 6 = 2x + 60 by the vertical angles theorem.

2x - 6 = 60

2x = 66

x = 33

Angle AOB = 4(33) - 6 = 126

Angle AOD = 180-126 = 54

Tags

CCSS.7.G.B.5

Use the image to solve for x and the angle measures.

a

b

c

19

10

120

79

101

60

Answer explanation

10x + 1 + 9x - 11 = 180

19x - 10 = 180

19x = 190

x = 10

Angle ABD = 10(10)+1 = 101

Angle DBC = 9(10) - 11 = 79

Tags

CCSS.7.G.B.5

• 2

• 31

• 27

Answer explanation

An angle bisector cuts an angle in half equally.

9x = 8x + 3

x = 3

Angle ABD = 9(3) = 27

Tags

CCSS.HSG.CO.C.9