Open Up - Grade 8 - Mathematics - Unit 2 - Lesson 4
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Last updated 11 months ago
7 questions
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Question 1
1.
Triangle ABC is dilated using D as the center of dilation with scale factor 2.
The image is triangle . Clare says the two triangles are congruent, because their angle measures are the same. Do you agree?
Question 2
2.
On graph paper, sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at R with scale factor 2.
Question 3
3.
On graph paper, sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at O with scale factor \frac{1}{2}.
Question 4
4.
On graph paper, sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at S with scale factor \frac{1}{2}.
Question 5
5.
The diagram shows three lines with some marked angle measures.
Find the missing angle measures marked with question marks.
Question 6
6.
Describe a sequence of translations, rotations, and reflections that takes Polygon P to Polygon Q.
Question 7
7.
Point B has coordinates (-2,-5). After a translation 4 units down, a reflection across the y-axis, and a translation 6 units up, what are the coordinates of the image?
"Source: Open Up Resouces (Download for free at openupresources.org.)"