Khan Academy
Khan Academy: Area of Composite Shapes
Models how to break an irregular polygon into smaller composite shapes, calculate the area for each of those, then add all the amounts together to get the total area. [5:15]
Khan Academy
Khan Academy: Area of Triangles Intuition
Learn the formula for the area of a triangle, one half base times height. [5:29]
Khan Academy
Khan Academy: Coordinate Plane Graphing Word Problem
Understand how to solve a word problem involving distance between points on quadrant 1 of a coordinate plane. [2:05]
Khan Academy
Khan Academy: Coordinate Plane: Graphing Points
Video tutorial demonstrates how to graph ordered pairs on a coordinate plane. [2:20]
Khan Academy
Khan Academy: Coordinates of a Missing Vertex
Shows how to locate a missing vertex of a rectangle when you know the coordinates of the other three vertices. [2:40]
Khan Academy
Khan Academy: Surface Area Using a Net: Triangular Prism
Calculate the surface area of a triangular prism in this video. [3:33]
Khan Academy
Khan Academy: Cylinder Volume and Surface Area
Looks at how to find the volume and the surface area of a cylinder using the standard geometric formulas. [8:07]
Khan Academy
Khan Academy: Volume of a Cone
A video exploring how to calculate the volume of a cone. [5:43]
Khan Academy
Khan Academy: Volume With Fractional Cubes
This video demonstrates a technique for finding the volume of a rectangular prism by dividing it up into fractional cubes. [4:17]
Khan Academy
Khan Academy: Volume of a Rectangular Prism: Fractional Dimensions
A video that shows you how to calculate the volume of a rectangular prism. [4:14]
Virtual Nerd
Virtual Nerd: How Do You Find the Area of a Triangle?
If you know the length of the base and the height of a triangle, it's easy to find the area. This tutorial illustrates how to plug the numbers into the formula for the area of a triangle and solve. [3:44]
Virtual Nerd
Virtual Nerd: How Do You Find the Perimeter of a Rectangle?
This tutorial explores the steps needed to find the perimeter of a rectangle. [4:31]
Virtual Nerd
Virtual Nerd: What Are Acute, Obtuse, Right, and Straight Angles?
Take a look at this tutorial to learn about the different kinds of angles and how to identify them. [4:15]
Virtual Nerd
Virtual Nerd: What's the Midpoint Formula?
The midpoint of a line segment is the point located midway between the endpoints of the line segment. Take a look at this tutorial to learn about the midpoint. [1:59]
Virtual Nerd
Virtual Nerd: What Is a Theorem?
A theorem is a general mathematical statement that can be used to help solve all sorts of problems. Watch this tutorial for an introduction to theorems. [4:11]
Virtual Nerd
Virtual Nerd: What Is a Dilation?
When someone's eyes dilate, their pupils get bigger or smaller, but they always stay the same shape. Dilation in math is very similar. When you dilate a figure, you change the size of the figure without changing its shape. This tutorial...
Virtual Nerd
Virtual Nerd: What Is a Geometric Mean?
The geometric mean can help you find a missing term in a geometric sequence. View this tutorial to understand geometric mean. [4:26]
Virtual Nerd
Virtual Nerd: What Is a Transformation?
Transformations allow you to change or move a figure. Learn about all the different kinds of transformations by watching this video. [4:19]
Virtual Nerd
Virtual Nerd: What Is a Tangent Line to a Circle?
For a line to be tangent, it must have a special relationship with a circle. It can only intersect the circle at one point. Watch this tutorial for a better understanding. [3:01]
Virtual Nerd
Virtual Nerd: What Is Circumference?
The circumference of a circle is the distance around that circle. Take a look at this tutorial to discover the formulas for the circumference of a circle. [4:22]
Virtual Nerd
Virtual Nerd: What Is a Biconditional Statement?
When a conditional statement and its converse are both true, you can write them as one statement called a biconditional statement. This tutorial illustrates this special kind of statement. [6:27]
Virtual Nerd
Virtual Nerd: What Is a Perpendicular Bisector?
This tutorial takes a look at perpendicular bisectors and illustrates what the term means. [3:23]
Virtual Nerd
Virtual Nerd: How Do You Classify Triangles?
This tutorial provides practice in classifying triangles which is useful when figuring out how to solve for various sides and angles. [7:15]
Virtual Nerd
Virtual Nerd: What Is the Coordinate Plane?
Video tutorial presents an illustration of the coordinate plane which is used to graph functions or plot ordered pairs. [1:09]
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