Question

Pls help
Write in simplest radical form

Answer 1

9514 1404 393

Answer:

E) 20

Explanation:

The triangles are all similar, so the ratios of short to long sides are ...

EF/FC = CF/FD

8/CF = CF/50 . . . . . . use given values

400 = CF² . . . . . . . . . cross multiply

20 = CF . . . . . . . . . . . take the square root