Question

check my answer?

Look at the figure below:

http://prntscr.com/96lvla

What is the length, in units, of segment CD?

8
9
6.25 >>> my answer
7.25

Answer 1

@jim_thompson5910

Answer 2

We can use the AA similarity theorem to say triangle BAC ~ triangle ACD


so we know that

BA/AC = AC/CD
4/5 = 5/x
4*x = 5*5
4x = 25
x = 25/4
x = 6.25

You have the correct answer

Answer 3

thank you!

Answer 4

np