ShmoopTube

Unlike anything that enters the Bermuda Triangle, Exterior angles can be found—in more than one way. This video covers how to use the remote inte...

ACT Math: Plane Geometry Drill 2, Problem 1. What is the perimeter of the shape shown?

ACT Math: Plane Geometry Drill 2, Problem 2. What is the perimeter of triangle GHF?

ACT Math: Plane Geometry Drill 2, Problem 3. What is the perimeter of the object in the video?

CAHSEE Math: Mathematical Reasoning Drill 3, Problem 4. Which of the expressions gives the best estimate as to the length of this quadrilateral's p...

GED Math: Measurement Drill 1, Problem 1. The area, in square inches, of the shaded region where the two rectangles overlap is...what?

Use the area formula to solve for length of the base of the triangle.

GED Math 4.3 Measurement. How should this equation for calculating the area of a hexagon be completed?

SAT Math 10.4 Geometry and Measurement. What is the perimeter of triangle DEF?

SAT Math 2.5 Geometry and Measurement

SAT Math 7.3 Geometry and Measurement

SAT Math 8.5 Geometry and Measurement

SAT Math 4.3 Geometry and Measurement

Curious to find out what angle these guys are playing? Check out this video. You’ll have angles coming out of the wazoo.

We know what you came here for—you want to hear the latest interview with the hot starlet, Polly Gon. Well, we've got the scoop for you. She's re...

We inscribed some angles on the walls of our office, but our boss got mad, so we made this video instead.

Want to figure out the area and perimeter of irregular shapes? Break them down into regular shapes. For example, a flower can be broken down into s...

It's super useful to be able to find the distance around stuff. Like when you’re being pursued by authorities while running around the base of an...

Rectangles just love to have perimeters. And we just love to measure them.

Measurement and Geometry Drill 3 Problem 1. How many feet of drywall will be needed for this job?