# what does ll mean

questioned by maham237 @ in Mathematics viewed by 104 People

What does this symbol "ll” mean?

In the diagram of AABC, points D and E are on AB and CB,

respectively, such that AC || DE.

What does "AC||DE" tell us? Why do we need this

information?

If AD = 24, DB = 12, and DE = 4, what is the length of AC ?

(1) 8

(3) 16

(2) 12

(4) 72

Show your calculation below to find the answer.