Circles and Area
![Picture](/uploads/3/7/2/7/37276207/3019058.jpg?381)
What You'll Learn:
- Investigate and explain the relationships among the radius, diameter, and circumference of a circle.
- Determine the sum of the central angles of a circle.
- Construct circles and solve problems involving circles.
- Develop formulas to find the the areas of a parallelogram, a triangle, and a circle.
- Draw, label, and interpret circle graphs.
Why It's Important:
- The ability to measure circles, triangles, and parallelograms is an important skill. These shapes are used in design, architecture, and construction.
Key Words
- radius, radii
- diameter
- circumference
- pi
- irrational number
- base
- height
- circle graph
- sector
- legend
- percent circle
- central angle
- sector angle
- pie chart
- Investigate and explain the relationships among the radius, diameter, and circumference of a circle.
- Determine the sum of the central angles of a circle.
- Construct circles and solve problems involving circles.
- Develop formulas to find the the areas of a parallelogram, a triangle, and a circle.
- Draw, label, and interpret circle graphs.
Why It's Important:
- The ability to measure circles, triangles, and parallelograms is an important skill. These shapes are used in design, architecture, and construction.
Key Words
- radius, radii
- diameter
- circumference
- pi
- irrational number
- base
- height
- circle graph
- sector
- legend
- percent circle
- central angle
- sector angle
- pie chart
Chapter 4 Textbook pages
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04wncp7_u4_inv_p128-175.pdf | |
File Size: | 1888 kb |
File Type: |
Chapter 4 Workbook pages
![](http://www.weebly.com/weebly/images/file_icons/pdf.png)
grade_7_unit_4_booklet.pdf | |
File Size: | 3758 kb |
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Activating Prior Knowledge
![](http://www.weebly.com/weebly/images/file_icons/rtf.png)
unit04_apk.doc | |
File Size: | 182 kb |
File Type: | doc |
4.1 Investigating Circles
![](http://www.weebly.com/weebly/images/file_icons/rtf.png)
extra_practice_lesson_4.1_-2.doc | |
File Size: | 203 kb |
File Type: | doc |
4.2 Circumference of a Circle
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extra_practice_lesson_4.2_.doc | |
File Size: | 89 kb |
File Type: | doc |
Mid-Unit Review
4.3 Area of a Parallelogram
![](http://www.weebly.com/weebly/images/file_icons/rtf.png)
extra_practice_lesson_4.3_.doc | |
File Size: | 185 kb |
File Type: | doc |
4.4 Area of a Triangle
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extra_practice_lesson_4.4_.doc | |
File Size: | 183 kb |
File Type: | doc |
4.5 Area of a Circle
![](http://www.weebly.com/weebly/images/file_icons/rtf.png)
extra_practice_lesson_4.5_.doc | |
File Size: | 145 kb |
File Type: | doc |
Circle Song
Circle Song 2
4.6 Interpreting Circle Graphs
![](http://www.weebly.com/weebly/images/file_icons/rtf.png)
extra_practice_lesson_4.6_.doc | |
File Size: | 193 kb |
File Type: | doc |
4.7 Drawing Circle Graphs
![](http://www.weebly.com/weebly/images/file_icons/rtf.png)
extra_practice_lesson_4.7_.doc | |
File Size: | 190 kb |
File Type: | doc |
Using a Spreadsheet to Create Circle Graphs
Unit Review
Practice Test
Unit Problem