A video entitled "Pythagorean Theorem in Solids" which talks about how 2D right triangles can be found in many 3D figures.

A video entitled "Examine Unknown Triangles" that covers how to use the distance formula and the converse of the Pythagorean theorem to see if triangles are right triangles.

A video entitled "Similar Figures Lengths" which shows how to use proportions to find side lengths in similar figures.

A video entitled "Create Triangles" which shows how to draw a triangle with a compass and straight edge.

This video, entitled "Verify Transformation Type," explains the different types of transformations that can occur with a two-dimensional figure.

A video entitled "Practical Examples" that covers transformations the result in similar figures, such as dilations and translations.

A video entitled "Exterior Angles in Triangles" which talks about using interior angles to calculate the measure of the exterior angle.

Preschool Prep Alphabet and Countries from A-Z V1-0027

This video introduces the flag and key symbols of Zimbabwe in a simple and engaging way. Through colorful visuals and clear narration, viewers learn about the significance of...

Explore this classic gravitation problem where three masses form an equilateral triangle and a fourth mass is placed at the center. Learn how to calculate the mass required for gravitational force balance and why doubling the central...

Howcast - Here's a really cool and easy-to-learn yo yo trick you can do to impress your friends.

Howcast - Learn how to make a hair bump using a rat tail comb in this Howcast video, the first of a two-part hair tutorial featuring stylist Jacqueline Bush.

Howcast - Learn the difference between a square subwoofer, a triangular subwoofer, and a round subwoofer in this Howcast car stereo video with expert Movin On.

Howcast - Learn about the eight tools you'll need to make pop-up cards and crafts in this Howcast video with expert Jessica Tice-Gilbert.

Howcast - Learn how to do the rubber band through thumb magic trick from Magician Roger "Rogue" Quan in this office magic tricks revealed video from Howcast.

Howcast - Learn about bow arm movement and direction for the violin from musician Julie Artzt Becker in this Howcast video.

Howcast - Learn how to understand MyPlate, the Food Pyramid replacement, from nutrition coach Lisa Neilsen in this Howcast video.

Howcast - Learn the triangle choke from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to do the triangle choke from Alliance MMA black belt Babs Olusanmokun in this Howcast Brazilian Jiu Jitsu video.

Howcast - Learn about bike safety locks from Silk Road Cycles' Brendon Nicholas in this Howcast bicycle repair and maintenance video.

Howcast - Learn how to defend against a knee bar leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, sambo, and mma.

Howcast - Learn how to do a rolling calf crush from turtle leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, and mma.

Howcast - Learn how to make an origami butterfly with this origami video from Howcast.

Howcast - Learn how to make an origami car with this origami video from Howcast.

Howcast - Learn how to make an origami shark with this origami video from Howcast.