Prove that points `(-3, -1), (2, -1), (1, 1) and (-2, 1)` taken in order are the vertices of a trapezium.

The points (-3,4),(-1,0),(1,0) and (3,4) taken in order are the vertices of a

The points (2,-2),(8,4),(5,7) and (-1,1) taken in order constitute the vertices of a

Show that the points (1, 1), (-1, 5), (7, 9) and (9, 5) taken in that order are the vertices of a rectangle.

The point 'A(1,2),B(2,-3),C(-1,-5) and D(-2, 4) ^(2) in order are the vertices of

Four points A(+1,-1,1);B(1,3,1);C(4,3,1) and D(4,-1,1) taken in order are the vertices of

Prove that the point A(1,3,0),B(-5,5,2),C(-9,-1,2) and D(-3,-3,0) taken in order are the vertices of a parallelogram.Also,show that ABCD is not a rectangle.

Show that the points (1,1),(-1,5),(7,9)and(9,5) taken in that order, are the vertices of a rectangle.

Prove that the points (4, 8), (7, 5) , (1, -1) and (-2, 2) are the vertices of a parallelogram.

Prove that the points (-1, -2), (-2, -5), (-4, -6) and (-3, -3) are the vertices of a parallelogram.

The points (-1,5),(-2,-3),(5,1)(6,9)' taken order are the vertices of a