pls help, solve for x

Answer:
Hi Jada, this type of problem shows up on Brainly sooo often. I feel like the teachers don't know how to explain this type of problem b/c so many people can't get these. My question to you is.... do you feel like your teacher has explained this well? :/
Step-by-step explanation:
this is also a trick type of question. the smaller triangle is a "similar" triangle to the bigger one. we can tell b/c they share the one side x. it's part of each of them and they are both right triangles sooooo
24 / x = x /3
72 = [tex]x^{2}[/tex]
8.48528 = x