Question

Show that points P(1, -2), Q (5,2), R(3.-1), S (- 1,-5)
are the vertices of a Parallelogram.​

Answer 1

Answer:

Find Distance between every pair of points. If Distances are coming equal , then it is a rhombus/square which is also a special case of parallelogram.

If all lengths are not coming equal , but 2 sets of distances are coming equal , then it is a rectangle or a parallelogram.

Use the Formula for finding distance between 2 points.

sqrt.[(x2-x1)^2 + (y2-y1)^2]

where x1,x2 are X coordinates of point you selected

y1,y2 are Y coordinates .