3 Questions
What is the formula for finding the circumference of a circle?
2 * π * r
What is the relationship between the diameter and the radius of a circle?
The diameter is twice the length of the radius
What is the area of a circle with radius 'r'?
π * r^2
Study Notes
Circle Formulas
- The formula for finding the circumference of a circle is C = 2πr, where C is the circumference and r is the radius.
- The diameter of a circle is equal to twice the radius, represented as d = 2r.
- The area of a circle with radius 'r' is A = πr², where A is the area.
Test your knowledge of circles with this quiz! Explore the formula for finding the circumference of a circle, understand the relationship between the diameter and radius, and calculate the area of a circle with radius 'r'.
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