Respuesta :
A = (s - 2)180
A = (s)180 - (2)180
A = 180s - 360 (add 360 to each side)
A + 360 = 180s - 360 + 360
A + 360 = 180s (divide 180 from each side)
(A + 360)/180 = s
s =
A = (s)180 - (2)180
A = 180s - 360 (add 360 to each side)
A + 360 = 180s - 360 + 360
A + 360 = 180s (divide 180 from each side)
(A + 360)/180 = s
s =
You said that A = (s-2) 180
Divide each side by 180 : A/180 = s-2
Add 2 to each side: A/180 + 2 = s