501 Geometry Questions

Set 93

Use distance and slope formulas to prove the validity of questions 454
through 456.

454. Show that the figure with vertices A (2,–5), B (6,–1), and C (6,–5) is
     a right triangle.


455. Show that the figure with vertices A (–8,3), B (–6,5), C (4,5), and
     D (2,3) is a parallelogram.


456. Show that the figure with vertices A (–5,–5), B (–5,–1), C (–1,–1),
     and D (–1,–7) is a trapezoid.

501 Geometry Questions