Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more (aligned with Common Core standards).

This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for …

Unit 15: Analytic geometry Distance and midpoints Dividing line segments Problem solving with distance on the coordinate plane Parallel and perpendicular lines on the coordinate plane …

2D figures have area and perimeter to describe the measurements of their interiors and exteriors. With 3D figures, we use volume and surface area for the same ideas. We'll find fractional …

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Get ready for high school geometry! Learn the skills that will set you up for success in congruence, similarity, and triangle trigonometry; analytic geometry; conic sections; and circles …

We now have fancy computers to help us perfectly draw things, but have you ever wondered how people drew perfect circles or angle bisectors or perpendicular bisectors back in the day. Well …

Cylinder volume & surface area Volume of a sphere Volume of a cone Geometry: FAQ

Learn high school geometry—reasoning with two-dimensional and three-dimensional figures visually and algebraically. This course aligns with TX TEKS standards.

Explore, prove, and apply important properties of circles that have to do with things like arc length, radians, inscribed angles, and tangents.