Which of the following are not perpendicular? the diagonals in a parallelogram the diagonals in a kite the diagonals in a rhombus the adjacent sides in a rectangle

A. The diagonals in a parallelogram.

Step-by-step explanation:

We are asked to choose which of the given choices are not perpendicular.

A. The diagonals in a parallelogram.

We know that diagonals of parallelogram bisect each other, they are not necessarily perpendicular. For example rectangle is parallelogram, but its diagonals are not perpendicular.

Therefore, option A is the correct choice.

B. The diagonals in a kite.

We know that the diagonals of a kite are perpendicular to of each other, therefore, option B is not a correct choice.

C. The diagonals in a rhombus.

We know that the diagonals of a rhombus are perpendicular to of each other, therefore, option C is not a correct choice.

D. The adjacent sides in a rectangle.

We know that all angle of rectangle are right angles. This means the adjacent sides are perpendicular, therefore, option D is not a correct choice.

the distance between point a and point b is 6 units