how would i solve this, math
posted by jasmine20 on .
Geometry. For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (3,18).
# 27 states the following: Geometry. Floor plans for a building have the four corners of a room located at the points (2,3), (11,6), (3,18), and (8,21). Determine whether the side through the points (2,3) and (11,6) is parallel to the side through the points (3,18) and (8,21).

determine whether the side
through the points (2, 3) and (11, 6) is perpendicular to the side through the points(2, 3) and (_3, 18).