Question

Please help me out! its urgent!

Answer 1

x = 7.5 cm

Step-by-step explanation:

ΔBCA ~ ΔECD ⇒ the corresponding sides are proportional.

`(AC)/(DC)` =
`(AB)/(DE)`

AC = 4 + 6 = 10 cm

`(10)/(6)` =
`(x+5)/(x)` ⇔ 10x = 6(x + 5) ⇒ x = 7.5 cm