perimeter = sum of all sides
27 = 9+7.8+x
x (third side) = 10.2
18 is the answer because eighteenth has nth in the ending
A. The hexagon is circumscribed about the circle .
D. Each vertex of the hexagon lies outside the circle .
E. The circle is tangent to each side of the hexagon .
5^2+(-2)^2=29
magnitude=(29)^(1/2)=around 5.3852
The answer you are looking for is 2!!
