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Plane Geometry Subsection of the ACT Test

Plane Geometry Subsection of the ACT Test

Author: Stacey Roshan

At the end of this tutorial, you will understand what kinds of questions to expect when taking the plane geometry subsection of the ACT test. You will also learn what topics are covered, some formulas to know, and some basic tips of the trade.

This tutorial will explain what kinds of questions students will experience on the plane geometry portion of the ACT test. It includes topics covered, formulas to know, and some basic tips of the trade.

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Notes on "Plane Geometry Subsection of the ACT Test"


(0:00-0:25) Introduction
(0:26-0:43) Topics Covered
(0:44-1:21) Properties of Circles, Tangent Lines, & Pathagorean Theorem
(1:22-2:13) Properties of Trapezoids
(2:14-2:52) Volume of a Cylinder
(2:53-4:23) Special Right Triangles & Area of Triangles
(4:24-6:43) Parallel Lines and Transversals
(6:44-6:54) Recap


There are 14 questions on the plane geometry subsection of the math section of the ACT exam. This subsection focuses on the following topics:

Angles and lines
Properties of: circles, triangles, rectangles, parallelograms, trapezoids
Volume and applications to 3-dimensions

Looking for more information on one of the topics covered in this tutorial? A good place to start is the search bar at the top of the page. Just type in what you need more help on and you'll be connected to our database of over 30,000 tutorials.

Concept Review and Formulas to Know