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Questions and Answers
What is the relationship between the diameter and the radius of a circle?
What is the relationship between the diameter and the radius of a circle?
- The diameter is twice the radius (correct)
- The diameter is the cube of the radius
- The diameter is the square of the radius
- The diameter is half the radius
What is the formula for calculating the circumference of a circle?
What is the formula for calculating the circumference of a circle?
- $\pi r^2$
- $2\pi r$ (correct)
- $\frac{1}{2} \pi r$
- $\frac{1}{2} \pi r^2$
What is the area of a circle with radius $r$?
What is the area of a circle with radius $r$?
- $\frac{1}{2} \pi r$
- $\pi r^2$ (correct)
- $2\pi r$
- $r^2$
What is the formula for calculating the circumference of a circle?
What is the formula for calculating the circumference of a circle?
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If a circle has a radius of 5 units, what is its circumference?
If a circle has a radius of 5 units, what is its circumference?
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In a circle, what is the relationship between the diameter ($d$) and the radius ($r$)?
In a circle, what is the relationship between the diameter ($d$) and the radius ($r$)?
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