Question

Which triangle is the original and which triangle is the dilation? Explain how you know. A, D, E… The first question was...

What is the center of the dilation? Explain how you know.
I explained and i have to solve number two
 
The center of Dilation is A. The Dilation is 1/2. The answer is no in this case for my question. Now back to your question, the center of dilation can't be between D and E, because if the figure were dilated from that point, we wouldn't get triangle ABL, so the center of dilation is actually at point A

Answer 1

so given that the scale factor is 1/2 - what mean this ?

Answer 2

any idea ?

Answer 3

Hmmmmmm...Using the Scale Factor. ... multiply by the scale factor, 1/2, I will get a smaller size.

Answer 4

yes more understandably every length side was halfen

and now can you answer what was the original triangle ?

Answer 5

Yeah