Question

plsss help how to solve this question

Answer 1

By BPT,
AD/AB = AE/AC
<A = <A

By SAS similarity test,
Triangle ADE ~ Triangle ABC

So,
DE/BC = AE/AC
4.5/6 = 3/AC
AC = 3×6/4.5
AC = 4 cm

Answer 2

Answer:

refer to the attachment hope it helps you g ❤️