# Dilation Map Segments, Angles, Rays Worksheet

 DO NOW – Geometry Regents Lomac 2014-2015 Date
. due
.
Dilation map segments,
5.7
angles, rays
(DN) Copy and complete the statement:
Name _______________________________Per______
When I make a scale drawing by dilating, I can verify that I
LO: I can perform dilations and explain how they map
have made a scale drawing by ________ and _______
segments, angles, and rays.
 (1)
Dilation of a segment about a center that is on the line . . .
ruler,
For each part, perform the indicated dilation.
compass
(a) D
(PQ)
O,2
P
O
Q
(b) D
(XY)
O,1/2
O
X
Y
(c) Describe what happens when you dilate a segment about a center point that is on the same line as the
segment.
(d) D
(CD)
O,1
C
O
D
(e) Describe what happens when you dilate a segment about a center point that is 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:
P'Q' = r (PQ)
X'Y' = r (XY)
C'D' = r (CD)
s r u
s r
uu
s r u
s r
uuu
s r u
s r
uu
circle which happens:
PQ
P P'Q'
or
XY
P X 'Y '
or
CD
PC' D'
or
s r u
s r
uu
s r u
s r
uuu
s r u
s r
uu
= P' Q'
= X 'Y '
= C' D'
PQ
XY
CD

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