Question

Please help me out! its urgent!

Answer 1

Answer:

x = 7.5 cm

Step-by-step explanation:

ΔBCA ~ ΔECD ⇒ the corresponding sides are proportional.

$\frac{AC}{DC}$ = $\frac{AB}{DE}$

AC = 4 + 6 = 10 cm

$\frac{10}{6}$ = $\frac{x+5}{x}$ ⇔ 10x = 6(x + 5) ⇒ x = 7.5 cm