Select answers from the drop-down menus to correctly complete the statements.A scale factor of (0.5 or 2) was applied to the first triangle to get the resulting image.This scale factor is ( an enlargement or a reduction ).An equilateral triangle with a side length of 3.4. An arrow points to a smaller equilateral triangle with a side length of 1.7

Note that after scaling, the triangle is still an equilateral triangle as before, and the only difference is that the side length is halved from 3.4 to 1.7 (3.4/2=1.7). Therefore, the scale factor is 1.7/3.4=0.5. A scale factor <1 means that the original shape is reduced (becomes smaller), so the scale factor is a reduction.