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AlgGeo Pre-Skills Unit 6

Total questions: 44

Worksheet time: 31mins

Name
Class
Date
1.

Which of the following angles is an acute angle?

a)

45 degrees

b)

90 degrees

c)

120 degrees

d)

180 degrees

2.

Identify the obtuse angle from the options below.

a)

80 degrees

b)

100 degrees

c)

90 degrees

d)

60 degrees

3.

Which of the following pairs of angles are supplementary?

a)

60 degrees and 120 degrees

b)

45 degrees and 45 degrees

c)

90 degrees and 80 degrees

d)

100 degrees and 100 degrees

4.

Which of the following is NOT an acute angle?

a)

30 degrees

b)

75 degrees

c)

90 degrees

d)

10 degrees

5.

Identify the angle that is obtuse.

a)

170 degrees

b)

45 degrees

c)

90 degrees

d)

89 degrees

6.

What type of angle is exactly 180 degrees?

a)

Acute

b)

Right

c)

Obtuse

d)

Straight

7.

If two angles are supplementary and one angle is 70 degrees, what is the measure of the other angle?

a)

20 degrees

b)

110 degrees

c)

100 degrees

d)

180 degrees

8.

What is a five-sided polygon called?

a)

Hexagon

b)

Pentagon

c)

Octagon

d)

Quadrilateral

9.

Which of the following is NOT a polygon?

a)

Circle

b)

Triangle

c)

Square

d)

Rectangle

10.

A polygon with all sides are the same length and angles are the same measure is known as what?

a)

Regular polygon

b)

Irregular polygon

c)

Symmetric polygon

d)

Asymmetric polygon

11.

How many sides does a nonagon have?

a)

7

b)

8

c)

9

d)

10

12.

Which of the following polygons is irregular?

a)

Equilateral triangle

b)

Square

c)

Rectangle with different side lengths

d)

Rhombus

13.

What is the minimum number of sides a polygon must have?

a)

2

b)

3

c)

4

d)

5

14.

A polygon with 12 sides is called what?

a)

Decagon

b)

Dodecagon

c)

Hexagon

d)

Octagon

15.

Which of the following statements is true for all regular polygons?

a)

All sides are of different lengths.

b)

All angles are of different measures.

c)

All sides are of equal length.

d)

They have at least one obtuse angle.

16.

What is the first step in using a protractor to measure an angle?

a)

Place the protractor's center hole over the vertex of the angle.

b)

Align the protractor's base with one arm of the angle.

c)

Guess the approximate measurement and then use the protractor to confirm.

d)

Mark the point where the two arms of the angle intersect on the protractor.

17.

How do you know which number to read on a protractor when measuring an angle?

a)

Always read the smaller number.

b)

Always read the larger number.

c)

Determine if the angle is smaller than 90°90^{\degree} if it is use the smaller numbers and read the number where the angle´s arm crosses the protractor´s scale.

d)

Read the number where the angle's arm crosses the protractor's scale.

18.

If you measure an angle and find that the arm crosses the protractor's scale at the number 145, what type of angle have you measured?

a)

Acute angle

b)

Right angle

c)

Obtuse angle

d)

Straight angle

19.

When measuring an angle, why is it important to ensure the base of the protractor is parallel to one arm of the angle?

a)

To make sure the measurement is as accurate as possible.

b)

It is not important; the protractor can be placed in any direction.

c)

To ensure that the angle looks aesthetically pleasing.

d)

To make the angle easier to draw.

20.

What is the maximum angle that can be measured using a protractor?

a)

90 degrees

b)

180 degrees

c)

270 degrees

d)

360 degrees

21.

What type of angle is measured if the arm crosses the protractor's scale at the number 90?

a)

Acute angle

b)

Right angle

c)

Obtuse angle

d)

Straight angle

22.

Given the points A, B, and C on a straight line, which of the following correctly represents the straight angle at point B?

a)

∠ABC

b)

∠CBA

c)

∠BAC

d)

∠CAB

23.

If point D is in the interior of ∠ABC, which of the following represents the adjacent angles formed?

a)

∠ABD, ∠CBD

b)

∠ABC, ∠CBD

c)

∠ABC, ∠ABD

d)

∠ABD, ∠ADC

24.

In a pair of adjacent angles ∠JKL and ∠LKM, which letter represents the vertex of both angles?

a)

J

b)

K

c)

L

d)

M

25.

In a triangle PQR, if the angle at Q is the largest, which of the following represents this angle?

a)

∠PQR

b)

∠QPR

c)

∠PRQ

d)

∠RPQ

26.

In the notation of an angle such as ∠YZX, which point is at the vertex of the angle?

a)

Point Y

b)

Point Z

c)

Point X

d)

Points Y and X

27.

Name the polygon using the vertices.

a)

GHIDEF

b)

GDEHFI

c)

GIEHDF

d)

GEHFID

e)

GFHIDE

28.

Which name is NOT correct for the polygon?

a)

PQRST

b)

PTSRQ

c)

TSRQP

d)

QRSTP

e)

SPRTQ

29.
The figure is an example of a(n) ...
a)
angle bisector
b)

linear pair

c)

vertical angles

d)

complementary angles

30.
Question Image

Match each object or measure in the first row with its appropriate description in the second row.

a)

∠AEC\angle AEC

1.

Acute

b)

∠DFE\angle DFE

2.

Right

c)

∠AED\angle AED

3.

Obtuse

d)

m∠DFEm\angle DFE

4.

90°90\degree

31.

∠\angle 1 and ∠\angle 2 are ​ (a)   angles because they share a vertex and a side. Because they form a right angle they are ​ (b)   angles.

Choose from the below words
adjacent
complementary
vertical
congruent
supplementary
obtuse
32.

What type of angles are these? (select 3)

a)

Adjacent Angles

b)

Linear Pair

c)

Complementary Angles

d)

Supplementary Angles

e)

Vertical Angles

33.

Which angles are vertical angles?

a)

∠8 & ∠7\angle8\ \&\ \angle7

b)

∠8 & ∠6\angle8\ \&\ \angle6

c)

∠8 & ∠5\angle8\ \&\ \angle5

34.

Which angle is complementary to ∠LJM\angle LJM  

a)

∠MJN\angle MJN  

b)

∠NJP\angle NJP  

c)

∠FGE\angle FGE  

d)

∠LJK\angle LJK  

35.
Vertical angles are always
a)
acute
b)
total 180 degrees
c)
congruent (equal measures)
d)
adjacent angles
36.

What angle is vertical to angle 2?

a)

∠4

b)

∠1

c)

∠2

d)

∠5

37.

∠7 and ∠8 are _______________

a)

Vertical

b)

Nothing

c)

Adjacent

d)

Supplementary

38.

Find the angle indicated.

39.

If the measure of ∠ADC is 

50 degrees, then what is the measure of ∠BDC?

a)

17.3 degrees

b)

32.7 degrees

c)

∠ADC = 50 degrees

1
2
3
1)
2)
3)
40.
What is the value of "a"?
a)
75°
b)
65°
c)
55°
d)
85°
41.
What is the value of "x"?
a)
20
b)
30
c)
25
d)
15
42.

∠1 and ∠2 are complementary angles. The measure of ∠1 is 30°.

The measure of ∠2 is 4x°. Find the value of x. The figure is not drawn to scale.

43.

Conventional or Nonconventional?

a)

Conventional

b)

Nonconventional

44.
Regular or irregular polygon?
a)
Regular Polygon
b)
Irregular Polygon

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