What is a Rhombus?

What is a Rhombus?

Note:

A rhombus is a special kind of quadrilateral. Knowing about the special properties of a rhombus is important to identifying and using these special polygons. This tutorial introduces you to the rhombus and explains its unique qualities. Take a look!

Keywords:

  • definition
  • rhombus
  • quadrilateral
  • 4 sides
  • four sides
  • congruent sides
  • four congruent sides
  • parallel sides
  • opposite sides
  • polygon
  • parallelogram
  • congruent
  • congruent angles

Background Tutorials

  • Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

      • What is a Quadrilateral?What is a Quadrilateral?

      What is a Quadrilateral?

      The term quadrilateral is a really fancy sounding name for a certain kind of polygon. Did you know that there are special types of quadrilaterals? Watch this tutorial to learn about quadrilaterals and their special types.

  • Prove theorems about parallelograms. Theorems include: opposite sides are congruent, opposite angles are congruent, the diagonals of a parallelogram bisect each other, and conversely, rectangles are parallelograms with congruent diagonals.

      • 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!

Further Exploration

  • Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

      • How Do You Classify Quadrilaterals?How Do You Classify Quadrilaterals?

      How Do You Classify Quadrilaterals?

      Got a figure with four sides? Then you have a quadrilateral! But there are many special types of quadrilateral. Follow along as this tutorial shows you how to figure out the possible names for a given quadrilateral!

  • Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems.

      • How Do You Find the Area of a Parallelogram?How Do You Find the Area of a Parallelogram?

      How Do You Find the Area of a Parallelogram?

      Looking for the area of a parallelogram? Got the length of the base and the height? Then plug those values into the formula for the area of a parallelogram and solve. This tutorial takes you through the process!

      • What is the Formula for the Area of a Parallelogram?What is the Formula for the Area of a Parallelogram?

      What is the Formula for the Area of a Parallelogram?

      Parallelograms and rectangles are pretty similar. In fact, you can turn a parallelogram into a rectangle to find the formula for the area of a parallelogram! Check out this tutorial to see how it's done!