Dilations Change Length by Scale Factor
Geometry · Flashcards
GEOMETRY · FLASHCARDS
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QUESTION
Identify whether the dilation is an enlargement or reduction if the scale factor is
k
=
11
10
k=\frac{11}{10}
k
=
10
11
.
QUESTION
What is the image length
L
′
L'
L
′
if
L
=
3
5
L=\frac{3}{5}
L
=
5
3
and the scale factor is
k
=
10
3
k=\frac{10}{3}
k
=
3
10
?
QUESTION
What is the scale factor
k
k
k
if a segment is halved in length by a dilation?
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ANSWER
k
=
1
2
k=\frac{1}{2}
k
=
2
1
. Halving means multiplying by
1
2
\frac{1}{2}
2
1
.
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