Because of urban constraints, the mosque's floor plan is not a perfect rectangle.

She turned to a spotless white counter top that held only a bulky object, which was nearly a perfect rectangle.

The sun is low to the west, and the shadows fall in perfect rectangles across the white sheets on his narrow bed.

This works if the frame is a perfect rectangle, but in many houses, even new ones, angles may be a little off.

Long and lean, what was almost a perfect rectangle lay stretched out to form a thick gray bar across the deep black of space.

The forest was cleared here in a perfect rectangle almost a kilometer long.

An instant later it flattened and spread into a perfect rectangle.

It's as if the car is preceded by a perfect rectangle of daylight.

"Since the chamber forms a perfect one-by-two rectangle, the builders have expressed a golden section, phi."

That formula assumes that the shape is a perfect rectangle.