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

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

Note:

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!

Keywords:

  • indirect
  • measurement
  • definition
  • proportion
  • ratio

Background Tutorials

  • Ratio Definitions

      • What's a Ratio?What's a Ratio?

      What's a Ratio?

      Ratios are everywhere! The scale on a map or blueprint is a ratio. Ingredients sometimes need to be mixed using ratios such as the ratio of water to cement mix when making cement. Watch this tutorial to learn about ratios. Then think of some ratios you've encountered before!

  • Determining Proportionality

      • What's a Proportion?What's a Proportion?

      What's a Proportion?

      The idea of proportions is that a ratio can be written in many ways and still be equal to the same value. That's why proportions are actually equations with equal ratios. This is a bit of a tricky definition, so make sure to watch the tutorial!

      • What's the Means-Extremes Property of Proportions?What's the Means-Extremes Property of Proportions?

      What's the Means-Extremes Property of Proportions?

      The means-extremes property of proportions allows you to cross multiply, taking the product of the means and setting them equal to the product of the extremes. This property comes in handy when you're trying to solve a proportion. Watch this tutorial to learn more!

  • Similar Figures

      • What are Similar Figures?What are Similar Figures?

      What are Similar Figures?

      Looking at two figures that are the same shape and have the same angle measurements? You have similar figures! Learn all about it in this tutorial!

  • Solving Equations by Dividing