# Introduction to Geometry

MOOC
English
4 hours course
Certification paid
Course by EdX
free
free
What will you learn?
How to measure angles, and rules for determining when angles are congruent
How to prove and apply properties of triangles, quadrilaterals, and other polygons
How to calculate the areas of polygons, circles, ellipses, and other complex shapes
How to prove and apply the Pythagorean theorem
How line segments and angles in circles are related
How to calculate the volumes and surface areas of three-dimensional solids

More than 2000 years ago, long before rockets were launched into orbit or explorers sailed around the globe, a Greek mathematician measured the size of the Earth using nothing more than a few facts about lines, angles, and circles. This course will start at the very beginnings of geometry, answering questions like "How big is an angle?" and "What are parallel lines?" and proceed up through advanced theorems and proofs about 2D and 3D shapes. Along the way, you'll learn a few different ways to find the area of a triangle, you'll discover a shortcut for counting the number of stones in the Great Pyramid of Giza, and you'll even come up with your own estimate for the size of the Earth.

In this course, you'll be able to choose your own path within each lesson, and you can jump between lessons to quickly review earlier material. GeometryX covers a standard curriculum in high school geometry, and CCSS (common core) alignment is indicated where applicable.

This course was funded in part by the Wertheimer Fund.

Program
Introduction to Geometry
Measure angles, prove geometric theorems, and discover how to calculate areas and volumes in this interactive course!
Lecturers
Zach Wissner-Gross
John Lee
Vivek Venkatachalam
Kenny Peng
Michael Fountaine
Stephen Face
Platform
All the courses on this platform are free of charge. The authors are top universities and corporations that seek to maintain high quality standards. If you do not meet a deadline for assignments, you lose points. Like on other platforms, the videos in which the theory is explained are followed by practical assignments. Courses are available in English, Chinese, Spanish, French and Hindi.
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