Upcoming SlideShare
×

# Using ratios in scale drawing

869 views
753 views

Published on

Published in: Education
0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
869
On SlideShare
0
From Embeds
0
Number of Embeds
190
Actions
Shares
0
15
0
Likes
0
Embeds 0
No embeds

No notes for slide
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• \n
• ### Using ratios in scale drawing

1. 1. SCale
2. 2. SCale SCale
3. 3. SCale SCale SCale
4. 4. SCale SCale SCale
5. 5. A scale is a ratio of size in a map, model, plan or drawing. Ratios are a way to compare two numbers or quantities.
6. 6. 2cm 2cm
7. 7. 4cm 4cm
8. 8. 4cm2cm 2cm 4cm Scale: 1cm = 2 cm Ratio: 1: 2
9. 9. 4cm 4cm
10. 10. 12cm 12cm
11. 11. 12cm4cm 4cm 12cm Scale: 1cm = 3 cm Ratio: 1: 3
12. 12. 15cm 10cm
13. 13. 3cm 2cm
14. 14. 15cm 3cm 2cm 10cm Scale: 5 cm = 1 cm Ratio: 5:1
15. 15. Now it’s your turn!Use Keynote to scale some images.Here’s how:1. Open Keynote2. Create a shape.3. Use the Inspector to make sure the length andwidth is a whole number.4. Decide on a scale you want to use.5. Duplicate the shape.6. Use your scale to enlarge or reduce the shapeusing the Inspector.