1. If you are having trouble remembering how to find the area for a circle check out this lesson.

2. How often do you see a building with the absence of circles? Think about a skatepark, how many ramps are squared?

3. When you are designing these ramps and pipes how will you know the size you need for a skater to use it. Knowing the area, diameter, radius and circumference are all important in correctly designing these parks.

4. Would this ramp work well for skating? What would have to increase to make it more "skatable"?

5. Now open up Google Sketchup and make some kind of half-pipe or full pipe using diameter to prove it could work. Post it on here, sketch it on your sheet.

## How do you use circles in Google: Sketch-up

1. If you are having trouble remembering how to find the area for a circle check out this lesson.

2. How often do you see a building with the absence of circles? Think about a skatepark, how many ramps are squared?

3. When you are designing these ramps and pipes how will you know the size you need for a skater to use it. Knowing the area, diameter, radius and circumference are all important in correctly designing these parks.

4. Would this ramp work well for skating? What would have to increase to make it more "skatable"?

5. Now open up Google Sketchup and make some kind of half-pipe or full pipe using diameter to prove it could work. Post it on here, sketch it on your sheet.