# Ch 29: ACT Math: Plane Geometry

Learn about plane geometry to help prep for the math section of the ACT. This chapter offers 2 hours of fun and engaging video lessons to teach concepts or review things you've already learned. Quiz yourself with lesson quizzes and a chapter exam to make sure you're ready to take on the ACT.

## ACT Math: Plane Geometry - Chapter Summary

Go over these crucial plane geometry concepts for help in passing the math section of the ACT test. Our short video lessons address the following topics:

• Types of angles
• Types of lines
• Properties of circles, rectangles, triangles and special right triangles
• Perimeter and area of triangles and rectangles
• Pythagorean theorem
• Area and circumference of circles
• Volumes of basic shapes

This chapter includes review in the practice and application of finding distance with the Pythagorean theorem. Go over vertical, corresponding and alternate interior angles in addition to parallel, perpendicular and transverse lines. Take the quizzes for immediate feedback, to see if you're ready for the ACT math test.

### ACT Math Objectives

The math portion of the ACT test is a 60-question, 60-minute assessment. The multiple-choice questions check your reasoning skills in the solutions of math problems. The math test addresses the following six areas:

• Plane geometry
• Coordinate geometry
• Trigonometry
• Pre-algebra
• Elementary algebra
• Intermediate algebra

The plane geometry portion of the test comprises 23% of the problems. Questions check your understanding of the following:

• Properties and relations of plane figures
• Relations among parallel and perpendicular lines
• Properties of trapezoids, parallelograms, rectangles, triangles and circles
• Transformations
• Proof techniques
• Volume
• Geometry applications to three dimensions

You'll receive four scores for the math test, including three sub-scores in plane geometry/trigonometry, pre-algebra/elementary algebra and intermediate algebra/coordinate geometry, in addition to an overall score for all 60 questions.

Final Exam
Chapter Exam

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