SOLUTION: 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). For the floor plans given above, determine whether the side

Question 118790: 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).
For the floor plans given above, determine whether the side throught he points (2,3) and (11,6) is perpendicualr to the side throught he points (2,3) and (-3,18).
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
SLOPES OF THESE TWO LINES CONNECTING THESE POINTS WILL TELL THE STORY:
(6-3)/(11-2)=3/9=1/3 FOR THE FIRST SLOPE.
(18-3)/(-3-2)=15/-5=-3 FOR THE SECOND SLOPE.
SEEING AS THESE TWO SLOPES ARE NEGATIVE RECIPRICALS OF EACH OTHER THAT SAYS THAT THESE LINES ARE PERPENDICULAR.
RELATED QUESTIONS
3. Geometry. Floor plans for a building have the four corners of a room located at the... (answered by jim_thompson5910)

please help I am so confuse how to do this type of problem Floor plans for a building... (answered by stanbon)

27. Geometry. Floor plans for a building have the four corners of a room located at the (answered by checkley71)

Geometry. Floor plans for a building have the four corners of a room located at the... (answered by venugopalramana)

Can someone help me out on this problem? I sure am lost. For the floor plan - a... (answered by checkley71)

For the floor plans given in exercise 27, determine whether the side through the points... (answered by stanbon)

Geometry. For the floor plans given in exercise 27, determine whether the side through... (answered by Nate)

Geometry: Floor plans for a building have the four corners of a room located at the... (answered by venugopalramana)

Floor plans for a building have the four corners of a room located at the points... (answered by psbhowmick,tutorcecilia)