Question

Given points​ P, Q,​ R, and​ S, decide whether PQ and RS are​ parallel, perpendicular, or neither.

P​ (9,10) Q(10,3) R (-9,4) S (-2,5)

Answer 1

Opposite Sides of Parallelogram are equal

If All opposite sides are equal , it is Parallelogram

For this You need to use distance formula that is

√(x2-x1)2+(y2-y1) 2