Area of Polygons

National Library of Virtual Manipulative: http://nlvm.usu.edu/en/nav/vlibrary.html

• https://www.mathplayground.com/area_perimeter.html
• https://www.brainpop.com/games/squareoff/

NOTE: Here the BASE is "length" and the HEIGHT is "width." Watch and see how the area of a parallelogram is the same as the area of its related rectangle.

https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-triangle/e/find-base-and-height-on-a-triangle

TRY SOME PROBLEMS:

https://www.mathgames.com/skill/6.106-area-of-complex-figures

https://www.ixl.com/math/grade-4/area-of-complex-figures-with-all-right-angles

Check out Journal pp. 67-68 and the first part of this video to review what we did in class today. Don't sign

up for a subscription at this site. The first part of the video should be enough. If the video is "unavailable," then type

"area of regular polygons" in the search box and it should pop up.

http://study.com/academy/lesson/measuring-the-area-of-regular-polygons.html

Learn what "apothem" is:

https://www.mathopenref.com/apothem.html

• https://www.illustrativemathematics.org/content-standards/6/NS/C/8/tasks/290
• https://www.khanacademy.org/math/basic-geo/basic-geo-coord-plane/polygons-in-the-coordinate-plane/e/drawing-polygons

REGULAR TESSELLATIONS

https://www.coolmath4kids.com/more/tessellations

DESCRIPTION OF MANY KINDS OF TESSELLATIONS

https://www.mathsisfun.com/geometry/tessellation.html

TESSELLATION FUN AND EXPLORATION

http://www.tessellations.org/

For Fun:

• https://www.mathplayground.com/area_perimeter.html
• https://www.mathgames.com/skill/6.106-area-of-complex-figures
• https://www.brainpop.com/games/squareoff/