Triangles ABC and FDG are similar, Record the proportionality of all pairs of similar sides

Solution.

In mathematics, there is such a rule: when such figures are written in letters, the corresponding similar elements are written strictly in the appropriate places, in order.

Hence:

<A of triangle ABC is equal to <F of triangle FDG;

<B of triangle ABC is equal to <D of triangle FDG;

<C of triangle ABC is equal to <G of triangle FDG;

Side AB of triangle ABC is proportional to side FD of triangle FDG;

Side BC of triangle ABC is proportional to side DG of triangle FDG;

The AC side of the ABC is proportional to the FG side of the FDG.