Kitchen Sink with a Built-in Platform

FIG. 1 is a front, top, right perspective view of a kitchen sink with a built-in platform, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is right elevation view thereof;

FIG. 6 is rear elevation view thereof; and,

FIG. 7 is a front elevation view thereof.

Broken lines show portions that form no part of the claimed design.