Posted by andrew on .
The perimeter of a regular octagon is p. write an expression that represents the length of one side of the octagon?

math 
JJ,
An octagon has 8 sides.
Perimeter = 8 times length of 1 side. 
math 
andrew,
so is it 8 times x?
8*x? 
math 
JJ,
no we have p = perimeter
You want to use p and 8.
Do you multiply or divide? 
math 
lina,
oh you multiply?

math 
andrew,
YOU MULTIPLY!
right..? 
math 
lina,
yes

math 
JJ,
no, you would divide.
Let's say the perimeter is 40?
Would it make sense to say a side is 320
or does it makes sense to say a side is 5? 
math 
andrew,
that makes sense so it would be 8/p then?

math 
JJ,
NO.. p/8
40/8 
math 
andrew,
Ohhhhh that makes much more sense thank you so just p/8 or p/8=x ?

math 
JJ,
Right. Glad it makes sense.

math 
emily,
Dont know

math 
quan,
yo what up