Answer:
This isn’t really a valid equation, so I’m guessing you forgot to type something.
Step-by-step explanation:
I think the The answer 1/1 or1/2! If it is not correct then ask some one else
Man i don’t know
i really donttt
Answer:
1140
Step-by-step explanation:
A decagon has 10 sides so substitute it like this:
(n-2) x 180
(10-2) x 180
8 x 180= 1140
