How Do You Use the Diagonals of a Rectangle to Find the Value of a Variable?

How Do You Use the Diagonals of a Rectangle to Find the Value of a Variable?

Note:

When you make diagonals inside a rectangle, those diagonals are congruent. With this information, you can find the value of a variable that's part of a measurement of a diagonal. This tutorial shows you the steps.

Keywords:

  • problem
  • quadrilateral
  • diagonals
  • rectangle
  • variable
  • equation

Background Tutorials

  • Quadrilateral Definitions

      • What is a Rectangle?What is a Rectangle?

      What is a Rectangle?

      A rectangle is one of the many fundamental shapes you'll see in math. Rectangles have special properties that can be very useful in helping you solve a problem. This tutorial introduces you to rectangles and explains their interesting qualities!

      • What is a Parallelogram?What is a Parallelogram?

      What is a Parallelogram?

      A parallelogram is a special type of quadrilateral with some special properties. In this tutorial, take a look at parallelograms and learn what kinds of quadrilaterals can also be called parallelograms!

  • Finding Corresponding Parts

      • What Does Congruent Mean?What Does Congruent Mean?

      What Does Congruent Mean?

      If two figures have the same size and shape, then they are congruent. The term congruent is often used to describe figures like this. In this tutorial, take a look at the term congruent!

  • Solving Equations by Adding

      • What are Inverse Operations?What are Inverse Operations?

      What are Inverse Operations?

      Did you know that addition is the opposite of subtraction and that division is the opposite of multiplication? In fact, these opposite operations will undo each other! These types of operations are called inverse operations. Get a great look at inverse operations with this tutorial!

  • Solving Equations with Variables on Both Sides