rotate the point (5,8) on a geometric figure 180 degrees clockwise.

To rotate a point 180 degrees clockwise, we can imagine reflecting the point across the x-axis and then the y-axis.

Reflecting the point (5, 8) across the x-axis gives us the point (5, -8).
Reflecting this new point across the y-axis gives us the final rotated point (-5, -8).

So, the point (5, 8) rotated 180 degrees clockwise is (-5, -8).