Perimeters Provided Around In The Vicinity Of Its Perimeter

Geometry Level 1

The rectangle $ABCD$ was divided into 9 small rectangles, and some rectangles have their perimeter inside it. The perimeter of rectangle $ABCD$ is $54 \text{ cm}$ . What is the perimeter of the gray rectangle?

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Perimeters Provided Around In The Vicinity Of Its Perimeter

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.