50 points
Help if you know.
Thanks.

Step-by-step explanation:

Refer to attached

You can easily calculate that each of the sides have the length:

Parallel sides have equal slopes:

Diagonals are perpendicular as their slopes are negative reciprocal:

So we see the quadrilateral ABCD has two pairs of parallel sides, all sides are equal and the diagonals are perpendicular.

This is the definition of the rhombus.

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length