Open Up - Grade 8 - Mathematics - Unit 1 - Lesson 14
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Last updated 9 months ago
7 questions
1
Use the diagram to find the measures of each angle.
Use the diagram to find the measures of each angle.
(Only one answer per angle)
- 130
- 60
- 90
- 140
- 40
- 50
- 180
- Angle ABC
- Angle EBD
- Angle ABE
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1
Lines k and l are parallel, and the measure of angle ABD is 19 degrees.
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.
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1
Lines k and l are parallel, and the measure of angle ABD is 19 degrees.
Lines k and l are parallel, and the measure of angle ABD is 19 degrees.
What is the measure of angle BCD?
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1
The diagram shows three lines with some marked angle measures.
The diagram shows three lines with some marked angle measures.
Find the missing angle measures marked with question marks.
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1
The two figures are scaled copies of each other.
The two figures are scaled copies of each other.
What are some ways that you can tell they are scaled copies?
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1
The two figures are scaled copies of each other.
The two figures are scaled copies of each other.
What is the scale factor that takes Figure 1 to Figure 2?
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1
The two figures are scaled copies of each other.
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.)
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