Circles: calculate area, circumference, radius, and diameter
Circles: calculate area, circumference, radius, and diameter
What you'll learn
- Identify the radius and diameter of a circle when given a visual representation or word problem with 80% accuracy.
- Calculate the circumference of a circle, given the radius or diameter, using the formula C = πd or C = 2πr and express the answer with appropriate units in at least 4 out of 5 problems.
- Calculate the area of a circle, given the radius or diameter, using the formula A = πr² and express the answer with appropriate units in at least 4 out of 5 problems.
- Solve real-world problems involving the area and circumference of circles, demonstrating understanding of which formula to apply in at least 3 out of 4 scenarios.
Tutorial Preview
A circle has a radius of 3. What is its area?
A circle has a diameter of 10. Find the circumference.
The area of a circle is 16 * pi. What is the radius?
Sample Practice Questions
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Frequently asked questions
What grade level is "Circles: calculate area, circumference, radius, and diameter"?
Circles: calculate area, circumference, radius, and diameter is a Grade 7 Mathematics lesson on ExcelOS.
What will I learn in Circles: calculate area, circumference, radius, and diameter?
You'll be able to: Identify the radius and diameter of a circle when given a visual representation or word problem with 80% accuracy; Calculate the circumference of a circle, given the radius or diameter, using the formula C = πd or C = 2πr and….
Is "Circles: calculate area, circumference, radius, and diameter" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Circles: calculate area, circumference, radius, and diameter?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.