1 / 12

Warm up: Work out the area of these figures. They are not drawn to scale .

Learn to find the surface area of prisms and cylinders by understanding nets and calculating total surface area in square units. Practice various exercises to reinforce your knowledge.

ececil
Download Presentation

Warm up: Work out the area of these figures. They are not drawn to scale .

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. Warm up: Work out the area of these figures. They are not drawn to scale. 7cm 5cm 10cm2 35cm2 5cm 9cm 36cm2 4cm 10 cm 4cm 8 cm 90cm2 12.5cm

  2. 13-2 Surface Area of Prisms Workbook Please

  3. Learn to find the surface area of prisms and cylinders.

  4. If you remove the surface from a three-dimensional figure and lay it out flat, the pattern you make is called a net. Nets allow you to see all the surfaces of a solid at one time. You can use nets to help you find the surface area of a three-dimensional figure. Surface area is the sum of the areas of all of the surfaces of a figure expressed in square units.

  5. Nets Interactions Click to play with nets

  6. Workbook pg 306 (l)(w) l h (l)(w) (l)(w) (l)(h) (l)(h) (w)(h) (w)(h) (l)(w) (w)(h) (l)(h)

  7. 6 in. 4 in. 12 in. 12 4. 12 6 4 6 96 144 48 288 288 in squared

  8. Practice p. 308

  9. Work out with your partner 2 (180) + (2)216 +(2) 120 2 (50) + (2)20 + (2) 10 360 + 432 + 240 = 1032 cm2 squared 100 + 40 + 20 = 160 in 2

  10. #5 Another way 7 Area = 7 x 5 Area = 35 5 How many are there? 2!! 2 x 35 = 70 7 Area = 7 x 8 Area = 56 8 How many are there? 1!! 1 x 56 = 56 Sur Area = 70 + 56 + 24 = Area = ½ (8 x 3) Area = 12 Sur Area = 150 ft 2 3 How many are there? 2!! 2 x 12 = 24 8

  11. Surface Area Practice

  12. Homework: Workbook pg 309 # 1 – 4

More Related