Octagon Study Guide
- Definition: An octagon is a polygon with eight sides and eight angles.
- Interior angles: The sum of the interior angles in any octagon is always 1080 degrees.
- Regular octagon: A regular octagon is one in which all the sides and angles are equal. Each interior angle in a regular octagon measures 135 degrees.
- Formulas:
- Sum of interior angles = (n-2) * 180 degrees
- Each interior angle = Sum of interior angles / number of sides
- Properties:
- An octagon has 8 sides and 8 angles.
- The exterior angles of an octagon add up to 360 degrees.
◂Math Worksheets and Study Guides Eighth Grade. Applications of percent
Study Guide
Applications of percent 
Worksheet/Answer key
Applications of percent Worksheet/Answer key
Applications of percent Worksheet/Answer key
Applications of percent Worksheet/Answer key
Applications of percent
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyThe resources above cover the following skills:
Number and Operations (NCTM)
Understand numbers, ways of representing numbers, relationships among numbers, and number systems.
Work flexibly with fractions, decimals, and percents to solve problems.