Upcoming SlideShare
×

# Camilla & Lauren Circle Reflection

170

Published on

Published in: Sports, Automotive
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
170
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
1
0
Likes
0
Embeds 0
No embeds

No notes for slide

### Camilla & Lauren Circle Reflection

1. 1. Why does circle area formula work? By Lauren and Camilla 06.03.09
2. 2. Problem: <ul><li>The formula for a rectangle is A = L x W </li></ul><ul><li>The formula for a circle is A= πr 2 </li></ul>
3. 3. Process: <ul><li>First we colored in half of a circle. </li></ul><ul><li>Then we cut all the small segments. </li></ul><ul><li>Then we stuck them on the another piece of paper so that it formed rectangle. </li></ul><ul><li>And a method was worked out. </li></ul>
4. 4. Challenges: <ul><li>The challenges that we faced were that we didn’t cut the segments small enough so that the rectangle formed wasn’t exactly perfect. </li></ul><ul><li>It also was difficult to work out the formula from a rectangle to a circle. </li></ul>
5. 5. Solution: <ul><li>A = L x W </li></ul><ul><li>A= C⁄2 x r </li></ul><ul><li>A= πd/2 x r </li></ul><ul><li>A = π2r ⁄2 xr </li></ul><ul><li>A = πr x r </li></ul><ul><li>A = πr 2 </li></ul>
1. #### A particular slide catching your eye?

Clipping is a handy way to collect important slides you want to go back to later.