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Open Up - Grade 8 - Mathematics - Unit 1 - Lesson 14
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Last updated 11 months ago
7 questions
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7.G.5
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7.G.5
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7.G.5
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Question 1
1.
Use the diagram to find the measures of each angle.
(Only one answer per angle)
60
180
90
40
50
140
130
Angle
ABC
Angle
EBD
Angle
ABE
Question 2
2.
Lines
k
and
l
are parallel, and the measure of angle
ABD
is 19 degrees.
Explain why the measure of angle
ECF
is 19 degrees. If you get stuck, consider translating line
l
by moving
B
to
C
.
Question 3
3.
Lines
k
and
l
are parallel, and the measure of angle
ABD
is 19 degrees.
What is the measure of angle
BCD
?
Question 4
4.
The diagram shows three lines with some marked angle measures.
Find the missing angle measures marked with question marks.
visibility
View drawing
Question 5
5.
The two figures are scaled copies of each other.
What are some ways that you can tell they are scaled copies?
Question 6
6.
The two figures are scaled copies of each other.
What is the scale factor that takes Figure 1 to Figure 2?
Question 7
7.
The two figures are scaled copies of each other.
What is the scale factor that takes Figure 2 to Figure 1?
(Keep your answer as a fraction.)
"Source: Open Up Resouces (Download for free at openupresources.org.)"