Geometry Videos

This video demonstrates how students can use what they know about the area of a parallelogram to find the area of a circle.

Use this video to show students what dilation and scale factor is when transforming two dimensional figures in a plane.

Students learn how to find equivalent ratios by multiplying and dividing by the same non-zero number. They will also learn ratio concepts and use ratio reasoning to solve problems.

In this video, students see how a figure can rotate on a plane to determine the angle of rotation.

Students can use "Building Figures" software to transform, rotate, reflect, and scale a figure in a plane.