the pentagon has equal angles so the inside angle is 108 to get 360 the circle angle inside 108+108=216 360-216=144
WRONGGGGGG
it is 9
12sqrt(3) 12*edge*4=x^3 the area so the edge or x=4sqrt(3) 4sqrt(3)^3=area so it is 12sqrt(3)
29
-4+2sqrt(2),-4-2sqrt(2)
