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Mathematics, 29.04.2021 02:50 smesarahmitchell

Point O is the center of dilation. Triangle D E F is dilated to create smaller triangle D prime E prime F prime. The length of O F prime is 3. The length of F prime F is 7. What is the scale factor of the dilation of triangle DEF?

Three-tenths
Three-sevenths
Seven-thirds
7

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