Finding the radius of a circle is easier than you might think. Here are the steps you can follow:
- Measure the diameter of the circle. You can do this using a ruler or a measuring tape.
- Divide the diameter by 2 to get the radius. For example, if the diameter is 10 cm, the radius will be 5 cm.
If you know the circumference instead, use this formula:
- Divide the circumference by 2π (approximately 6.28). For instance, if the circumference is 31.4 cm, the radius is 31.4 / 6.28 = 5 cm.
For more information on circle geometry, visit Khan Academy.