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Quadrilateral GHIJ is a scale drawing of quadrilateral ABCD with a scale factor r. Describe the following statements as always true, sometimes true, or never true, and justify your answer.

a. AB/GH = BC/HI
b. perimeter (GHIJ) = r * perimeter (ABCD)
c. Area (GHIJ) = r * area (ABCD)
d. r < 0

2 answers

a true
b true
c false
d false (unless you consider r<0 as a reflection as well as a scaling. Then it could be true sometimes)
what is then of quadrilateral GHIJ
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