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The blue triangle has been dilated from the red triangle, What was the scale factor (k)? A. 3B. 4C. 1/3D. None of the aboveI would appreciate the help on this problem.

The blue triangle has been dilated from the red triangle What was the scale factor k A 3B 4C 13D None of the aboveI would appreciate the help on this problem class=

Respuesta :

the scale factor is 3

to find the scale factor we measure one side of the red triangle; in this case, AB is 2

then we measure the dilated side A'B' and we obtain 6

so, we have to find a number that if we multiply by 2, we obtain 6

[tex]\begin{gathered} 2\cdot x=6 \\ x=\frac{6}{2} \\ x=3 \end{gathered}[/tex]