Dilation Map Segments, Angles, Rays Worksheet Page 2
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115.7
(2)
Dilation of a segment about a center that is NOT on the line . . .
ruler,
For each part, perform the indicated dilation.
compass
(a) D
(QB)
J,3
Q
J
B
(b) D
(UG)
M,1/4
M
G
U
(c) Describe what happens when you dilate a segment about a center point that is NOT on the same line as the
segment.
(d) D
(MW)
B,1
B
M
W
(e) Describe what happens when you dilate a segment about a center point that is NOT on the same line as the
segment AND the scale factor is 1.
(f) For parts a, b, and d,
(a)
(b)
(d)
verify that:
Q'B' = r (QB)
G'U' = r (GU)
M'W' = r (MW)
s r u
s r
uu
s r u
s r
uu
s r uu
s
uuu
r
QB
PQ' B'
GU
MW
P M 'W '
circle which happens:
or
PG'U'
or
or
s r u
s r
uu
s r u
s r
uu
s r uu
s
uuu
r
= Q' B'
= G' U'
= M 'W '
GU
MW
QB
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