Answer:
Vertex Distance to Vertex Distance to
A 3.6 AEF 3.6
B 2.2 BEF 2.2
C 2.0 CEF 2.0
D 3.4 DEF 3.4
Step-by-step explanation:
20 because for all regular polygons their exterior angles add up to 360, so 360\18 =20
Step-by-step explanation:

Answer:
y = x - 1
Step-by-step explanation:
Find the slope:
(-4 - (-2))/(-3 - (-1))
-2/-2 = 1
y = x + b
Plug in one of the points:
(-1,-2)
-2 = -1 + b
b = -1
y = x - 1