NTSE 2015

Geometry Level 1

Two solid right circular cones have the same height. The radii of their bases are \(a\) and \(b\). They are melted and recast into a cylinder of same height. The radius of the base of the cylinder is __ ?

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100 Day Summer Challenge

NTSE 2015

This is a problem from the NTSE paper held on 8 November 2015.

Excel in math and science

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It's hard to learn from lectures and videos

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Featured

Topics

Community

100 Day Summer Challenge

NTSE 2015

This is a problem from the NTSE paper held on 8 November 2015.

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.