AnswersFL-1205040-MJ Grade 7 Mathematics B -GFCircumference

Circumference — Unit test Answers

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1
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Which angles are vertical angles and, therefore, congruent?

Question illustration
A
and
Option A
B
and
Option B
C
and
Option C
D
and
Option D
2
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Line l and line m are straight lines. Which statements are true regarding the angles in the figure? Select two options.

Question illustration
A
Measure of angle a = measure of angle b
Option A
B
Measure of angle a = measure of angle c
Option B
C
Measure of angle a + measure of angle b = measure of angle c
Option C
D
Measure of angle a + measure of angle b = 90 degrees
Option D
E
Measure of angle a + measure of angle b + measure of angle c = 124 degrees
Option E
3

Which statement is true about two angles that are complementary?

A
The angles share a common ray.
B
The sum of the measures of the two angles is 90°.
C
The angles are opposite each other.
D
The sum of the measures of the two angles is 180°.
4

Kaleem wanted to draw a triangle where the sides measured 5 cm, 8 cm, and 7 cm. How many unique triangles could Khaleem draw that fit these dimensions?

A
1
B
2
C
3
D
4
5

If is 155°, what is ?

Question illustration
A
25°
B
35°
C
155°
D
180°
6

A circular rug has a radius of 4.5 feet. What is the circumference of the rug? Use 3.14 for and round to the hundredths place.

Question illustration
A
14.13
B
28.26
C
44.37
D
88.74
7

Which statement is true about the circumference of a circle?

A
The circumference is the measurement around the circle.
B
The circumference is the measurement of the radius.
C
The circumference is the measurement of the diameter.
D
The circumference is double the radius.
8

Isosceles triangle ABC is shown below.What is the value of x?

Question illustration
A
22°
B
79°
C
136°
D
158°
9

What is the value of x in the diagram?

Question illustration
A
52 degrees
Option A
B
64 degrees
Option B
C
128 degrees
Option C
D
138 degrees
Option D
10

The diagram below shows triangle MNR with ray NM.What is the measure of ?

Question illustration
A
3°
B
5°
C
18°
D
28°
11

Joo-Eun wants to draw a triangle with sides measuring 6 mm, 8 mm, and 11 mm. Which is true about Joo-Eun’s plan?

A
Joo-Eun cannot draw a triangle with these side lengths.
B
Joo-Eun can only draw one unique triangle with these side lengths.
C
Joo-Eun can draw exactly two triangles with these side lengths.
D
Joo-Eun can draw more than one triangle with these side lengths.
12

What is the value of k in the linear pair below?

Question illustration
A
14 degrees
Option A
B
76 degrees
Option B
C
104 degrees
Option C
D
180 degrees
Option D
13

Yu-Xi draws a triangle with two angles measuring and . What is the measure, in degrees, of the third angle?

Question illustration
A
78
B
79
C
101
D
102
14

Kasia wants to create a triangle with angles measuring , , and . She says that only one unique triangle is possible given these angle measures. Which statement about Kasia’s claim is true?

Question illustration
A
Kasia is incorrect. Since the angles sum to and no side lengths are given, multiple triangles can be drawn with these angle measures.
Option A
B
Kasia is incorrect. No triangle can be made with these angle measures because they do not sum to .
Option B
C
Kasia is correct. Since the angles sum to and no measurements are given, only one unique triangle is possible.
Option C
D
Kasia is correct. Since the angles do not sum to , only one unique triangle is possible.
Option D
15

What is the circumference of this circle, in millimeters? Use for .

Question illustration
A
154
B
308
C
484
D
968

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