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Area & Circumference of Circle




 

Videos and lessons to help Grade 7 students know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

Common Core: 7.G.4

Suggested Learning Targets


  • I can state the formula for area and circumference of a circle.
  • I can use the formula for the area of a circle to solve problems.
  • I use the formula for the circumference of a circle to solve problems.
  • I can identify or produce a logical conclusion about the relationship between the circumference and area of a circle (e.g., given three circles with the areas A1>A2>A3, the circumferences satisfy C1>C2>C3).
  • I can write my solutions in terms of pi(π), decimals, and fractions.

Related Topics:
Common Core for Grade 7

Common Core for Mathematics

More Math Lessons for Grade 7

Know and use the formulas for area and circumference of a circle--Lesson 1 of 5 (Common Core 7.G.4)
In this lesson you will learn how to determine the measures of a circle by exploring the definition of a circle.


Know and use the formulas for area and circumference of a circle--Lesson 2 of 5 (Common Core 7.G.4)
In this lesson you will learn to find the circumference of a circle by exploring the ratio of the diameter and circumference.





Know and use the formulas for area and circumference of a circle--Lesson 3 of 5 (Common Core 7.G.4)
In this lesson you will learn to find the area of a circle by exploring the relationship between a circle and a rectangle.


Know and use the formulas for area and circumference of a circle--Lesson 4 of 5 (Common Core 7.G.4)
In this lesson you will learn how to find the area of a circle by using the measure of the circumference.



 

Know and use the formulas for area and circumference of a circle--Lesson 5 of 5 (Common Core 7.G.4)
In this lesson you will learn how to find the circumference of a circle by using the measure of area.


Area of a Circle - 7.G.4
In this video, students will learn to find the area of a circle using the formula. This video relates to Common Core Standard 7.G.4. Students learn about pi, the radius, square numbers and the procedure for finding the area of a circle.




Circumference of a circle : Finding diameter and area given the circumference.


Find circumference given area.



 

Circles Radius Diameter & Pi
Learn circumference, radius, pi and more through music.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.





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