Plane Geometry
These Plane Geometry questions are aligned with the ACT from ACT, Inc. in United States.
Select a difficulty level to start practicing. Easy exams are free. Medium and hard exams require a premium subscription.
Plane Geometry is the largest content area on the ACT Math, covering angles, triangles, circles, quadrilaterals, perimeter, area, and basic three-dimensional figures. ACT Plane Geometry questions often involve multiple steps—applying a formula is usually not enough; you also need to set up the relationship between geometric figures. Practice with these tests to develop the spatial reasoning and multi-step problem solving that Plane Geometry demands.