Hey there!
The answer for adjacent angles is BGC and CGD, CGD and DGE, and DGE and EGF.
The answer for vertical angles is AGB and EGD, DGC and AGF, and BGC and FGE.
Have a good day!
İts all ready in its simplest form. To get it into a simpler form you need to give us an answer...
"n choose k" gives you the number of possible unique combinations...
n!/(k!(n-k)!)
n=number of elements to choose from and k=the number of elements that you choose...in this case:
7!/[2!(7-2)!]
7!/[2!5!]
21
There are 21 possible different two question combinations that she can pick.