# Free Geometry Help

Need some geometry help? We have more than thirty excellent geometry lessons here, broken up in general topics. Make sure to browse all of the topics to find what you need, or search by keyword.

## Graphing Lines

- Asymptotes
- Domain and Range
- Finding Asymptotes
- Finding Horizontal Asymptotes
- Point Slope Form
- Slope Intercept Form
- Slope of a Line
- X-Y Axis
- Graphing a Parabola

## Shapes

- Triangles
- 30-60-90 Right Triangle
- Parallelograms
- Trapezoids
- Special Parallelograms
- Congruent Triangles
- Isosceles Triangles
- Polygons

## Angles, Lines, and Points

- Distance Formula
- World of Angles
- Special Angles
- Parallel Lines
- Length of a Line Segment
- Sum of the Angles of a Triangle
- Exterior Angles of a Triangle
- Interior Angles of a Polygon
- Triangle Inequalities
- Midpoint Formula

## More Lessons

## Formulas

## Other Stuff

## Lessons from Other Sites:

- Areas, Volumes, Surface Areas
- Circumference of a Circle
- Classifying Angles
- Conic Sections/Circles
- Interior Angles of Regular Polygons
- Polygon Basics
- Pythagorean Theorem
- Three-Dimensional Figures

## Recent Geometry Questions

Tangram problem *Saturday January 18, 2020*

I will be thankful for any ideas and clues *Saturday January 18, 2020*

Calculate distance from ratio between three points. *Saturday January 18, 2020*

Please, help find the ratio between volumes *Saturday January 18, 2020*

Please, help to find the area of the gray triangle *Friday January 17, 2020*

Mosaic tesselation calculation *Friday January 17, 2020*

Help I'm a noob *Thursday January 16, 2020*

pi/(pi - (1/2)) approx = 2^(1/4) *Thursday January 16, 2020*

Recursive Problem *Tuesday January 14, 2020*

Perspective problem *Tuesday January 14, 2020*