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Blue Area?

Geometry Level 1

This triangle is divided into nine parallel stripes of equal height. The total area of the red stripes is 145.

What is the total area of the blue stripes?

135 116 120 145

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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.

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including olympiad champions, researchers, and professionals.

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by Hana Wehbi

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