Proving Triangles Similar

How Do You Solve a Problem Using Indirect Measurement with Shadows?

Word problems allow you to see the real world uses of math! This tutorial shows you how to take a word problem and use indirect measurement to turn it into a proportion. Then see how to use the mean extremes property of proportions to cross multiply and solve for the answer. Take a look!
How Do You Determine if Two Triangles are Similar Using the SAS Similarity Postulate?

What does SAS mean? The position of the letters gives you a clue as to how to use the SAS Similarity Postulate! Check out this tutorial to learn more.