1 / 12

Geometry Basics: Perimeter and Area Review for Shapes

Learn how to find the perimeter and area of squares, rectangles, and parallelograms through simple formulas and comparisons. Understand the concepts of length, width, base, and height in calculating the area of different shapes.

luke-foley
Download Presentation

Geometry Basics: Perimeter and Area Review for Shapes

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. Perimeter and Area Review

  2. Review How do you find the perimeter of a square? P = 4s P = 4 x 5 cm P = 20 cm 5 cm

  3. Review How do you find the perimeter of a rectangle? P = 2L + 2W or P = 2(L + W) 3 cm 6 cm P = 2 x 6cm + 2 x 3cm P = 2(6cm + 3cm) P = 2(9cm) P = 12cm + 6cm P = 18 cm P = 18 cm

  4. Review How do you find the area of a square? A = s² A = 5 cm x 5 cm A = 25 cm² 5 cm

  5. Review How do you find the area of a rectangle? A = LW A = 8 cm4 cm 4 cm 8 cm A = 32 cm²

  6. Area of Parallelograms

  7. Area of Parallelograms The formula for finding the area of a rectangle is A = LW. The formula for finding the area of a parallelogram is A = bh. In the formulas for area of a rectangle and parallelogram: Length = base Width = height

  8. Area of Parallelograms How do you find the area of a parallelogram? 5 cm 8 cm Think change the parallelogram to a rectangle.

  9. Area of Parallelograms 5 cm 8 cm Change the parallelogram to a rectangle by making a triangle on one end and sliding it to the other end.

  10. Area of Parallelograms How do you find the area of a parallelogram? 5 cm 8 cm A = bh A = 8 cm 5 cm A = 40 cm²

  11. Area of Parallelograms How does the area of the rectangle compare to the area of the parallelogram? 5 cm 5 cm 8 cm 8 cm A = LW A = bh A = 8 cm5 cm A = 8 cm5 cm A = 40 cm² A = 40 cm²

  12. Area of Parallelograms How does the area of the rectangle compare to the area of the parallelogram? 5 cm 5 cm 8 cm 8 cm A = 40 cm² A = 40 cm² The two figures are equal in area.

More Related