Search results
This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for the first time, consider using the grade-level courses for more in-depth instruction.
- Unit 1
Learn how to measure the size of 2D shapes with area and...
- Start Course Challenge
Start Course Challenge - Basic Geometry - Khan Academy
- Area & Perimeter of Rectangles Word Problems
Find the missing side length of a rectangle when given its...
- Represent Rectangle Measurements
Represent Rectangle Measurements - Basic Geometry - Khan...
- Triangle Angles Angle Relationships
Triangle Angles Angle Relationships - Basic Geometry - Khan...
- Complementary and Supplementary Angles (Visual)
Complementary and Supplementary Angles (Visual) - Basic...
- Area and The Distributive Property
Area and The Distributive Property - Basic Geometry - Khan...
- Finding Surface Area 3D Figures
Math: Get ready courses; Get ready for 3rd grade; Get ready...
- Unit 1
If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Basic geometry and measurement. This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for the first time, consider using the grade-level courses for more in-depth instruction.
In this topic you will learn about the most useful math concept for creating video game graphics: geometric transformations, specifically translations, rotations, reflections, and dilations. You will learn how to perform the transformations, and how to map one figure into another using these transformations.
Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more. (aligned with Common Core standards)
Explore. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today! About. News.
Khan Academy