Radical axis — AMC & AIME Practice Problems | LIVE by Po-Shen Loh

LIVE

中文

Radical axis — AMC & AIME Problems

Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses radical axis — a geometry concept — each with a professionally curated solution, many with a video solution too, from LIVE by Po-Shen Loh. Browse all concepts or the full past-contest archive.

All of these problems are used with official legal permission of the Mathematical Association of America (MAA).

AMC 12

2015 AMC 12B Problem 24 · 2017 AMC 12B Problem 9 · 2021 AMC 12A Spring Problem 24 · 2023 AMC 12B Problem 10

AIME

2016 AIME I Problem 15 · 2019 AIME I Problem 13 · 2019 AIME I Problem 15 · 2021 AIME I Problem 13 · 2023 AIME II Problem 9

More geometry concepts

3D geometry altitude angle bisector angle bisector theorem angle chasing angle sum annulus arc area area decomposition area ratio Brahmagupta’s Formula centroid chord circle circle area circumcircle, circumcenter, and circumradius circumference cone congruence (geometry)coordinate geometry cube geometry cyclic quadrilateral cylinder diagonal distance formula ellipse equiangular polygon equilateral triangle Euler’s Polyhedron Formula Heron’s Formula homothety hyperbola incircle, incenter, and inradius inscribed angle isosceles triangle kite lattice point law of cosines law of sines mass points median (geometry)midpoint net (3D geometry)paper folding parabola parallel lines parallelogram perimeter perpendicular bisector Pick’s Theorem polyhedron power of a point power scaling of length, area, and volume Ptolemy’s Theorem pyramid Pythagorean Theorem Pythagorean Triple rectangle rectangular prism reflection (geometry)regular polygon rhombus right triangle sector shoelace formula similarity special right triangle sphere square (geometry)Stewart’s Theorem surface area tangent circles tangent line transformation trapezoid triangle area triangle inequality trigonometric identity trigonometry vector Viviani’s Theorem volume