Answer:
36
Explanation:
Give the vertices of a polygon as (7, −18) and (7, 18) .
Length of the side is calculated using the formula;
L = √(x2-x1)²+(y2-y1)²
L = √(7-7)²+(18-(-18))²
L = √0+(36)²
L = √(36)²
L = 36
Hence the length of this side of the polygon is 36