Sophia: Using Similarity to Identify Missing Information: Lesson 4

Amaze your classes with the ability to find side lengths of triangles immediately — they'll all want to know your trick! Learners use the Pythagorean Theorem and special right triangle relationships to find missing side lengths.

Not all triangles are right! Pupils learn to tackle non-right triangles using the Law of Sines and Law of Cosines. After using the two laws, they then apply them to word problems. 

This lesson demonstrates how to use similar figures to find some unknown information about similar figures. It is 3 of 5 in the series titled "Using Similarity to Identify Missing Information."

This lesson demonstrates how to use similar figures to find some unknown information about similar figures. It is 5 of 5 in the series titled "Using Similarity to Identify Missing Information."

Find unknown information about similar figures by using similar figures. Assess learning with a quiz.

This lesson demonstrates how to use similar figures to find some unknown information about similar figures. It is 1 of 5 in the series titled "Using Similarity to Identify Missing Information."

This lesson provides real-world examples that demonstrate how to organize data into matrices. It is 4 of 5 in the series titled "Using Matrices to Organize Data." [8:40]

This lesson provides practice examples that use conjugates to rationalize denominators. It is 1 of 6 in the series titled "Using Conjugates to Rationalize Denominators."

This lesson discusses assigning data values to the axes of a graph. It is 4 of 7 in the series titled "Using Axes to Represent Data."

This lesson explains why similar triangles can be used to make indirect measurements, and provides an example. It is 1 of 5 in the series titled "Using Similar Triangles to Make Indirect Measurements."