Learn high school geometry for free transformations congruence similarity trigonometry analytic geometry and more economics physics chemistry biology medicine finance history and more khan academy is a nonprofit with the mission of providing a free world class education for anyone anywhere if youre seeing this message . Course summary review the geometry topics youve been learning in class with this convenient and self paced high school geometry course. The time4learning geometry curriculum is one of five math courses offered at the high school level students can expect to see various concepts being covered including points lines and planes logic and reasoning angles slopes triangles polygons circles volume area and more. Math planet is an online resource where one can study math for free take our high school math courses in pre algebra algebra 1 algebra 2 and geometry we have also prepared practice tests for the sat and act