1 / 7

How well did you do? Did you show calculations ?

Do now: These cuboids are all made from 1 cm cubes. Can you find their volumes and surface areas? State the units in your answers. 1. 2. 3. 5. 6. 4. How well did you do? Did you show calculations ?. 1. 2. 3. V = 3 x 3 x 3 = 27cm 3. V = 1 x 2 x 4 = 8cm 3. V = 2 x 2 x 4 = 16cm 3. 5.

pules
Download Presentation

How well did you do? Did you show calculations ?

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. Do now: These cuboids are all made from 1 cm cubes.Can you find their volumes and surface areas? State the units in your answers. 1 2 3 5 6 4

  2. How well did you do? Did you show calculations ? 1 2 3 V = 3 x 3 x 3 = 27cm3 V = 1 x 2 x 4 = 8cm3 V = 2 x 2 x 4 = 16cm3 5 6 4 V = 4 x 4 x 2 = 32cm3 V = 3 x 3 x 5 = 45cm3 V = 2 x 4 x 4 = 32cm3

  3. How well did you do? Did you show calculations ? 1 2 3 SA = 2 x 8 + 2 x 4 + 2 x 2 = 28cm2 SA = 2 x 4 + 2 x 8 + 2 x 8 = 40cm2 SA = 2 x 9 + 2 x 9 + 2 x 9 = 54cm2 5 6 4 SA = 2 x 9 + 2 x 15 + 2 x 15 = 78cm2 SA = 2 x 8 + 2 x 8 + 2 x 16 = 64cm2 SA = 2 x 16 + 2 x 8 + 2 x 8 = 64cm2

  4. Challenge question 1:These two shapes each have a volume of 60cm3 Can you find the missing lengths? 1 2 ? 6 cm 3 cm 5 cm 5 cm ? Extra challenge: Can you find the length, width and height of another cuboid that has a volume of 60cm3 ?

  5. How well did you do? Did you solve these problems correctly, showing your calculations? 1 2 ? 6 cm 3 cm 5 cm 5 cm ? 3 x 5 x 4 = 60cm3 6 x 5 x 2 =60cm3

  6. Challenge question 2:These two shapes have the same volume. Can you find the missing length? 4 cm 8 cm 10 cm 5 cm ? 4 cm

  7. How well did you do? Did you solve the problem correctly, showing your calculations? 4 cm 8 cm 10 cm 5 cm ? 3 cm 8 x 3 x 10 = 240cm3 4 x 5 x 12 =240cm3 How did you work out the answer?

More Related