1 / 28

Finding the Area of Polygons

Finding the Area of Polygons. Vocabulary. Perimeter The sum of all sides of the shape. Area The total occupied space of a shape in units squared. Area of Triangles. Height (h). Base (b). or . We know how to find the area of a square or a rectangle. What if we cut the shapes in half?.

limei
Download Presentation

Finding the Area of Polygons

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Finding the Area of Polygons

  2. Vocabulary • Perimeter • The sum of all sides of the shape. • Area • The total occupied space of a shape in units squared.

  3. Area of Triangles Height (h) Base (b) or

  4. We know how to find the area of a square or a rectangle

  5. What if we cut the shapes in half?

  6. Example = = = 12 units squared

  7. Try

  8. One More

  9. Notice all of our examples have been right triangles • In other triangles, you must make sure you are using the height. • Height is always perpendicular to the base

  10. Find the Area 5 in 3 in 7 in

  11. Find the Area 10 in 6 in 12 in

  12. Finding the Area of Other Polygons

  13. We Know How to Find the Area of Several Figures Already

  14. Finding the area of a rhombus and parallelogram • They are just squares and rectangles pushed over Area = 4 un² Area = 4 un² 3 Notice that we are not using the length of the angled side!

  15. Trapezoid • Formula for area

  16. Trapezoids 5 =5 = 5 = 35 units squared

  17. Area of Other Polygons

  18. Sometimes Things Are Not Perfect or We are Missing Vital Information • Divide the shape into shapes we can use

  19. Example

  20. Example

  21. 4 4

  22. 2 3 2

  23. Closure: With a partner find the area 6 3 5 4

More Related