Mathematics

Problem

\triangle ABC

D

is on

AB

and

E

is on

AC

. If

AB = 10\,\text{cm}

AC = 15\,\text{cm}

AD = 4\,\text{cm}

and

DE \parallel BC

, find

AE

. a)

9\,\text{cm}

6\,\text{cm}

5\,\text{cm}

10\,\text{cm}