## Geometry Sections

Basics of GeometryReasoning and Proofs

Parallel and Perpendicular Lines

Transformations

Congruent Triangles

Relationships Within Triangles

Quadrilaterals and Other Polygons

Similarity

Right Triangles and Trigonometry

Circles

Circumference, Perimeter, and Area

Surface Area and Volume

## Math Fact

Did you know that geometry is one of the oldest mathematical sciences? It was formally created by Euclid in the 3rd century BC. That is over 2300 years ago. If you are my student, about 15 years old, that means it is about 153 times older than you.

## Famous Math Quote

If you think dogs can't count, try putting three dog biscuits in your pocket and then giving Fido only two of them.

~Phil Pastoret

# Latest Video

The video might take a little while to play. Please be patient.

## Finding Sector Area of a Circle

#### In this video, I explain the definition of a sector and how to find the sector area of a circle. I work 2 example problems, one for finding the sector of a circle and the other to find the radius of a circle with a given sector area.

## Disclaimer

This website is dedicated to mostly geometry because I'm a geometry teacher. Included on this website will be videos of geometry throughout the year and I'm going to try and add a few interactive aspects where you can practice your math skills. Keep in mind this is a work in progress. I'm adding to this website as time goes by. I probably won't be able to complete every part of this website this year.