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What is an example of a scale factor that expands a shape?
x > 1
What is an example of a scale factor that shrinks a shape?
0 < x < 1
Do you agree: when dilating a shape, the corresponding angles will change in measurement
Disagree!
What transformation(s) preserve the size/measurements of a figure? Why?
Translations, reflections, rotation because they're rigid transformations!
True or False: Similar polygons will have congruent corresponding angles AND proportional side lengths
Yes!
Find the length of the missing side
x = 5
Find the length of the missing side
x = 2
Why are these two triangles similar?
Their corresponding angles are congruent!
Are these two triangles similar? If they are, what is the scale factor?
Yes! 3 or 1/3
Are these two triangles similar? If they are, what is the scale factor?
Yes! 2 or 1/2
Are these two triangles similar? If they are, what is the scale factor?
Yes! 2 or 1/2
Are these two triangles similar? If they are, what is the scale factor?
Yes! F -> G (2) | G -> F ((1/2)
Are these two triangles similar? If they are, what is the scale factor?
Yes! 3/2 or 2/3
Are these two triangles similar? If they are, what is the scale factor?
Yes! From a -> b (1/2) | from b -> a (2)
What is your scale factor from q to p?
1/3
What is your scale factor from p to q?
3
Are these two triangles similar? How do you know?
No! The triangles don't share a common scale factor
Are these rectangles similar? How do you know?
No! The triangles don't share a common scale factor
Are these two triangles similar? How do you know?
No! The triangles don't share a common scale factor
Are these two triangles similar? How do you know?
No! The triangles don't share a common scale factor
what is your scale factor from l to k?
2
what is your scale factor from k to l?
1/2
what is your scale factor from d to c?
1/4
What is your scale factor from c to d?
4!
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