Help Please! Due Today In △ABC the points M and N belong to the sides AC and AB respectively. AM/MC=AN/NB=2/3. Prove that MN∥BC.

Question

3 years ago

11

Find MN if BC=20.

2 answers:

sasho [114] · Answer 1 · 2022-03-26T16:24:24+03:00

5 0

Answer:

It does = 20 you're correct :)

Step-by-step explanation:

Ratling [72] · Answer 2 · 2022-03-26T18:36:00+03:00

Ratling [72]3 years ago

4 0

Answer:

MN=8

Step-by-step explanation:

since AM/AC = AN/AB = 2/5,

then ∆ABC similar to ∆ANM.

since ∆ABC ~ ∆ANM,

then MN || BC.

by similarity

MN = BC•2/5 = 8