Verify that parallelogram ABCD with vertices A(-5, -1), B(-9, 6), C(-1, 5), and D(3, is a rhombus by showing that it is a parallelogram with perpendicular diagonals.​

Verify that parallelogram ABCD with vertices A5 1 B9 6 C1 5 and D3 is a rhombus by showing that it is a parallelogram with perpendicular diagonals class=