Question

calculate the scale factor of abc to def enter answer as a whole number or as a fraction into lowest terms

Answer 1

Scale is 1/6

Explanation:

Since all sides and angles are identical these are congruent triangles

3 ways to solve:

Scale Factor = DE / AB = 12/72 = 1/6

Scale Factor = DF/AC = 7/42 = 1/6

Scale Factor = EF/CB = 11/66 = 1/6