Sophia Learning
Sophia: Sides of a Triangle: Lesson 4
This lesson explains the rules for side lengths involved in creating a triangle. It is 4 of 7 in the series titled "Sides of a Triangle."
Sophia Learning
Sophia: Sides of a Triangle: Lesson 5
This lesson explains the rules for side lengths involved in creating a triangle. It is 5 of 7 in the series titled "Sides of a Triangle."
Sophia Learning
Sophia: Sides of a Triangle: Lesson 1
This lesson explains the rules for side lengths involved in creating a triangle. It is 1 of 7 in the series titled "Sides of a Triangle."
Sophia Learning
Sophia: Using Similar Triangles to Make Indirect Measurements
This lesson explains why similar triangles can be used to make indirect measurements, and provides an example.
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 2
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 2 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 3
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 3 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 6
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 6 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 7
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 7 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 9
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 9 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 1
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 1 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Triangle Exterior Angles Practice: Lesson 4
This lesson provides practice problems that apply the triangle exterior angles theorem. It is 4 of 6 in the series titled "Triangle Exterior Angles Practice."
Sophia Learning
Sophia: Corresponding Parts: Lesson 2
This lesson [4:27] will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 2 of 5 in the series titled "Corresponding Parts."
Sophia Learning
Sophia: Corresponding Parts: Lesson 3
This lesson [6:07] will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 3 of 5 in the series titled "Corresponding Parts."
Sophia Learning
Sophia: Equilateral Triangle Interior Angles Practice Problems: Lesson 2
This lesson will provide practice problems that involve solving for unknown angle and side measures of equilateral triangles. It is 2 of 5 in the series titled "Equilateral Triangle Interior Angles Practice Problems."
Sophia Learning
Sophia: Finding the Missing Angle of Right Triangle: Lesson 1
Following this lesson, the angle measure of one non-right angle of a right triangle, and the right angle symbol in the right angle of the triangle, you'll be able to determine the value of the missing angle. It is 1 of 9 in the series...
Sophia Learning
Sophia: Pythagorean Theorem
We introduce the Pythagorean Theorem and show how it can be used to help solve real world problems. Student watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Pythagorean Theorem
We introduce the Pythagorean Theorem and show how it can be used to help solve real world problems. Student watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Using the 30 60 90 Rule: Lesson 4
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 4 of 9 in the series titled "Using the 30-60-90 Rule."
Sophia Learning
Sophia: Triangle Exterior Angles Practice
This video lesson demonstrates how to use the triangle exterior angle theorem to find interior angle measurements of a triangle. [4:28]
Shmoop University
Shmoop: Triangles
A video clip [2:09] using an everyday bag of chips to explain the different types of triangles.
Khan Academy
Khan Academy: Vi Hart: Doodling in Math: Triangle Party: Triangles!
Video exploring triangles and illustrating fractal concepts such as the Koch snowflake. [4:25]
Expansion Learning
Expansion Learning: Basic Shapes (Part One)
Video provides students with an explanation of the basic shapes of square, rectangle, triangle, and circle.