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Type: Multiple-Choice
Category: Symmetry and Transformations
Level: Grade 9
Standards: HSG-SRT.A.1, HSG-SRT.A.1b
Author: nsharp1
Created: 4 years ago

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Grade 9 Symmetry and Transformations CCSS: HSG-SRT.A.1, HSG-SRT.A.1b

$Delta ABC$ is dilated by a factor of 2 with the origin as the center of dilation. Which of the following gives the perimeter of the image

$Delta A'B'C' ?$

$2 AB + BC + AC$
$2AB + 2BC + 2AC$
$2^3(AB+ BC+AC)$
$2A'B' + 2B'C' + 2A'C'$