I need help on how to do this, picture attached. Thank you.

Question

asked Dec 14, 2020 47.2k views

1 Answer

Kyryl Zotov · Answer 1 · 2020-12-18T10:50:19+0000

ΔFDE ~ ΔFSR by the SSS similarity theorem

Corresponding sides have the same ratios:

... FD/FS = 88/32 = 11/4

... DE/SR = 121/44 = 11/4

... EF/RF = 143/52 = 11/4

So, the triangles are similar by the SSS similarity theorem.