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Geometry lessons - School Yourself
The mathematics of lines, shapes, and angles. Essential stuff for describing the world around you. « Back to dashboard 1. Lines and angles Lines, rays, & segments Learn about lines, rays, and line segments Angles and degrees Learn what angles are, and how to measure them Right, acute, and obtuse
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School Yourself - Free online math lessons
Interactive online math videos, lessons, and tutoring. Algebra, geometry, trigonometry, precalculus, and calculus!
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Algebra lessons - School Yourself
Algebra Learn about functions, graphs, lines, and polynomials. "Algebra" is the math for describing how different things are related. « Back to dashboard
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Triangles - Geometry - School Yourself
Interactive math video lesson on Triangles: Introducing triangles and three different types of them - and more on geometry
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Algebraic expressions - Algebra - School Yourself
Interactive math video lesson on Algebraic expressions: Learn how to evaluate expressions with variables - and more on algebra
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My dashboard - School Yourself
The mathematics of change. And it'll use just about every branch of math you've learned before it.
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Geometry: Lines, rays, & segments - School Yourself
Interactive math video lesson on Lines, rays, & segments: Learn about lines, rays, and line segments - and more on geometry
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Log in - School Yourself
Subjects Geometry Algebra Trigonometry Algebra II Calculus Books Trigonometry Hands-On Precalculus Hands-On Calculus Company About us Meet the team Blog Contact us Terms & privacy Follow us
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Trigonometry lessons - School Yourself
Lengths of circular arcs A formula for arc length in terms of radius and angle Sectors Learn what a sector is, and a formula for finding its area
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Area of a circle - Geometry - School Yourself
Interactive math video lesson on Area of a circle: Using circumference to find a circle's area - and more on geometry