Free Professional Development

Or

Geometry

Calculating the Area of two-dimensional shapes is a skill that transcends all areas of study within Geometry. We will practice the basics with the Area formula, Calculating the Area of a Triangle, and Estimating the Area of a Circle. Try challenging your geometric comprehension with Area of a Parallelogram with Triangles and Rectangles or Calculating the Area of a Triangle. We provide concepts for you to perfect and challenge your level of mastery. Designed with the tools and applications for calculating Area formula, this course will provide proficiency and mastery at all levels.

- Area
- Area formula
- Finding Area with a Grid
- Finding Area with Squares
- Estimating Area
- Triangle Height
- Area of a Triangle
- Calculating the Area of a Triangle
- Solving Height or Base of a Triangle given it's Area
- Area of a Square
- Calculating the Area of a Rectangle
- Formula for the Area of a Parallelogram
- Area of a Rhombus
- Area of a Parallelogram with Triangles and Rectangles
- Trapezoid Height and Base
- Area of a Trapezoid
- Solving for the Area of a Quadrilateral
- Formula for the Area of a Circle
- Calculating the area of a circle.
- Estimating the Area of a Circle
- Determining the Area of a Circle from the Radius
- Determining the Area of a Circle from the Diameter
- Determining the Radius or Diameter of a Circle from the Area
- Determining the Circumference of a Circle from the Diameter
- Determining the Circumference of a Circle from the Radius
- Determining the Radius or Diameter of a Circle from the Circumference
- Composite Figure
- Finding the Area of Composite Figures
- The Area of a Regular Polygon

Study fundamental topics in college-level algebra with emphasis on application.

Grasp core concepts of statistics such as probability distributions, approximations, and hypothesis-testing.

Pathways are a sequence of tutorials that help you learn a whole subject area, one concept at a time. Choose from multiple teachers and teaching styles.

The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia's online courses for college credit. These courses are eligible to transfer to many different colleges and universities.