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Mathematics 15 Online
OpenStudy (anonymous):

Note: Figures not drawn to scale. 10. If y = 60 in ∆ DEF above, how much greater is the perimeter of ∆ ABC than the perimeter of ∆ ABC than the perimeter of ∆ DEF ? (A) 0 (B) 3 (C) 6 (D) 8 (E) 9

OpenStudy (anonymous):

it's question 10

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