Open Up - Grade 8 - Mathematics - Unit 2 - Lesson 3
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Last updated 12 months ago
10 questions
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Question 1
1.
Segment AB measures 3 cm. Point O is the center of dilation. How long is the image of AB after a dilation with . . .
Scale factor 5?
Question 2
2.
Segment AB measures 3 cm. Point O is the center of dilation. How long is the image of AB after a dilation with . . .
Scale factor 3.7
Question 3
3.
Segment AB measures 3 cm. Point O is the center of dilation. How long is the image of AB after a dilation with . . .
Scale factor \frac{1}{5}?
Question 4
4.
Segment AB measures 3 cm. Point O is the center of dilation. How long is the image of AB after a dilation with . . .
Scale factor s?
Question 5
5.
Here are points A and B. Plot the points for each dilation described.
C is the image of B using A as the center of dilation and a scale factor of 2.
D is the image of A using B as the center of dilation and a scale factor of 2.
E is the image of B using A as the center of dilation and a scale factor of \frac{1}{2}.
F is the image of A using B as the center of dilation and a scale factor of \frac{1}{2}.
Question 6
6.
Make a perspective drawing.
Include in your work the center of dilation, the shape you dilate, and the scale factor you use.
Question 7
7.
Triangle ABC is a scaled copy of triangle DEF. Side AB measures 12 cm and is the longest side of ABC. Side DE measures 8 cm and is the longest side of DEF.
Triangle ABC is a scaled copy of triangle DEF with what scale factor?(Leave your answer as a fraction.)
Question 8
8.
Triangle ABC is a scaled copy of triangle DEF. Side AB measures 12 cm and is the longest side of ABC. Side DE measures 8 cm and is the longest side of DEF.
Triangle DEF is a scaled copy of triangle ABC with what scale factor?(Leave your answer as a fraction.)
Question 9
9.
The diagram shows two intersecting lines.
Find the missing angle measures.(One Measurement per answer)
102
52
58
Question 10
10.
Find the side lengths of DEF and the angle measures of ABC.
(Mark your answers on the table below.)
"Source: Open Up Resouces (Download for free at openupresources.org.)"