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20 questions
Scale factor greater than 1 makes the image _________
larger
smaller
same size
This is an ________________.
enlargement
reduction
reflection
Scale factor between 0 and 1 makes the image _________
larger
smaller
same size
To find an image _________the side length by the scale factor.
add
subtract
multiply
divide
If AB = 3 and the scale factor is 4 then how long is A'B'?
Quadrilateral ABCE is dilated with center F.
What is the scale factor?
1
Is AB parallel to A'B' ?
Yes, because dilations create parallel lines
No, because the sides are not proportional.
No, dilations do not create parallel lines.
What are two equal ratios or fractions called?
Write a similarity statement for the triangles.
Figures are similar if there is a sequence of _____ motions AND
a ________ that fits one on top of the other.
non-rigid, dilation
rigid, dilation
translation, dilation
dilations, rigid
Square KFLO is similar to KTHN because KTHN is (a) across line (b) then dilated using center (c) and a scale factor of (d) .
Similar figures have (a) corresponding sides and (b) corresponding angles.
Select the figures that are similar to parallelogram P
Which of the following shapes are always similar?
Right Triangles
Isosceles Triangles
Equilateral Triangle
Circles
Rectangles
Are these triangles similar?
Yes, by SAS Similarity
Yes, by AA Similarity
No
Not enough information
The Angle-Angle Similarity (AA ~) Theorem states if two angles of one triangle are _______________ to two angles of another triangle, then the triangles are ____________________.
adjacent; equal
complementary; scalene
congruent; similar
supplementary; isosceles
State if the triangles in each pair are similar. If so, state how you know they are similar.
Yes, AA Similarity
Yes, SSS Similarity
Yes, SAS Similarity
Not Similar
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