Chapter 8 Polygons and Area
Chapter 8 focuses on finding the area of several different types of polygons.
8.1 Classifying Polygons
Goal: Describe polygons
Keywords:
convex
concave
equilateral
equiangular
regular
Read and take notes on...
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Click through this powerpointintroduction to polygons. It's easier to view it in "slideshow" mode. Make sure to take good notes!
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Mathopenref on convex polygons
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regular polygons including equiangular, equilateral polygons.
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Standard Deviants introduction to polygons. It also introduces the polygon interior angles theorem which we'll cover in 8.2.
Do...
8.2 Angles in Polygons
Goal: Find the measures of interior and exterior angles of polygons.
Keywords:
interior angle
exterior angle
Read and take notes...
Watch and take notes...
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Discovery Education on how to find the number of degrees in the angles of a polygon.
Do...
See Mrs. Bisgard to take Quiz 8.2
8.3 Area of Squares and Rectangles
Goal: Find the area of squares and rectangles. Most of us probably remember this from previous math courses, but it's good stuff! It's useful both in real life and on the California High School Exit Exam, so we'll review it here.
Keywords:
area
square
rectangle
Read and take notes...
Watch...
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Discovery Education's video on how to find the area of a rectangle. This video also talks about perimeter, which IS on the Exit Exam, although we won't cover it in this section of the class it is good to review it.
Do...
8.4 Area of Triangles
Goal: Find the area of triangles.
Keywords:
height of a triangle
base of a triangle
Read...
Watch...
- Discovery Education on the area of triangles.
Do...
8.5 Area of Parallelograms
Goal: Find the area of parallelograms.
Keywords:
base of a parallelogram
parallelogram
rhombus
Read...
Watch...
8.6 Area of Trapezoids
Goal: Find the area of trapezoids.
Keywords:
trapezoid
base of a trapezoid
height of a trapezoid
Watch...
Do...
8.7 Circumference and Area of Circles
Goal: Find the circumference and area of circles.
Keywords:
circle
center
radius
diameter
circumference
central angle
sector
Read...
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Mathopenref on area of circles
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Watch...
Do...
End of Chapter
Go on to Chapter 9!
