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AMC triangles problems

Triangle area, the Pythagorean theorem, special right triangles, medians, altitudes and angle bisectors.

379 problems in the archive use these ideas — 193 from the AMC 10 and 186 from the AMC 12.

Picks a problem you have not seen, at about the difficulty you are handling.

60 most recent problems

Newest contests first. Every problem opens with its answer choices, hints and a worked solution.

Use Start triangles practice above to keep going through the remaining 319, or browse them by contest in the AMC 12 and AMC 10 archives.

Back to all geometry problems.