Asked by Joe
                For 2 similar triangles ABC and DEF, the scale factor of ABC to DEF is 2:3. If AB=2(BC) and DE=3(BC), what is EF?
            
            
        Answers
                    Answered by
            Reiny
            
    I assume that you have listed the two triangles in matching vertices, that is, A <--> D , etc
let AB = 2x
then DE = 3x , must be in the ratio of 2:3
if AB = 2BC
2x = 2BC
BC = x
given: DE = 3BC
DE = 3x , (we already knew that)
then EF = 6x
    
let AB = 2x
then DE = 3x , must be in the ratio of 2:3
if AB = 2BC
2x = 2BC
BC = x
given: DE = 3BC
DE = 3x , (we already knew that)
then EF = 6x
                    Answered by
            Joe
            
    Oh so we add 3X And the 3X to get 6X for EF ?
    
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