Praxis Geometry study guide
Praxis Geometry · Work through your exam, one topic at a time.
Praxis Geometry is one of the subject assessments in the Praxis family of educator certification tests administered by ETS. ETS describes Praxis as the assessment that measures "core teaching skills and subject knowledge for educator licensing in the U.S." The Geometry test is intended for candidates seeking a teaching license or endorsement in mathematics with a geometry emphasis, typically at the secondary level, and states and educator preparation programs use Praxis scores as part of their certification requirements. Because each state sets its own requirements, ETS advises candidates to check state requirements before registering so they register for the right test. ETS publishes free study companions and study guides describing test format and test outline, and offers official test prep including online courses, digital flashcards and practice tests. ETS also states that 88.1% of people who use at least one Praxis test-prep product pass the exam, based on a survey of 345 Praxis users in 2024. This page is an independent study resource and is not affiliated with or endorsed by ETS. Topics on this exam: Geometry content knowledge. The Praxis Geometry study guide has 1 section and about 415 words.
01Geometry Content Knowledge
The Geometry content knowledge domain of the Praxis Geometry exam assesses your ability to reason with Euclidean and coordinate geometry, justify claims with proofs, and apply transformations, similarity, congruence, circles, measurement, and right-triangle trigonometry. Questions often ask not only for a numerical answer but for the theorem or definition that makes the answer valid. Congruence: SSS, SAS, ASA, AAS, and HL for right triangles. SSA and AAA are not congruence criteria.
415 words, about 2 minMore study resources for Praxis Geometry
- Practice questionsIn a circle with center O, chord AB has length 16 and its midpoint M is 6 units from O.
- FlashcardsVertical angles. Two nonadjacent angles formed by intersecting lines.
- Cheat sheetAngle relationships: vertical angles are equal; linear pairs sum to 180°; complementary angles sum to 90°; supplementary angles sum to 180°.
- Key termsUndefined terms. The basic building blocks of geometry-point, line, and plane-that are accepted without formal definition and used to define all other figures.
- Study planBuild a one-page formula sheet covering perimeter, area, surface area, and volume for triangles, quadrilaterals, circles, prisms, cylinders, pyramids, cones, and spheres.
- Common mistakesCandidates memorize theorem names from a textbook list and treat naming as justification.
- Exam-day guidePrint or save the confirmation you received when you registered.