Circles and Square

Geometry Level 3

A square just fits within a circle, which itself just fits within another square, as shown in the diagram. What percentage, to one decimal place, is the sum of the two shaded areas out of the area of the big square?

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100 Day Summer Challenge

Circles and Square

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Community

100 Day Summer Challenge

Circles and Square

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, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

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

Master advanced concepts through explanations,
examples, and problems from the community.

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

Master advanced concepts through explanations,
examples, and problems from the community.

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