Diameter

The diameter of a circle is a straight line that passes through the center of the circle and touches two points on the circle. It is the longest distance that can be measured across a circle. The diameter is always twice the length of the radius of the circle, and it is a crucial measurement in understanding the properties of circles.

How to Calculate Diameter

To calculate the diameter of a circle, you can use the formula:

d = 2r

Where d represents the diameter and r represents the radius.

Study Guide

Here are some key points to remember about the diameter of a circle:

1. The diameter is a straight line that passes through the center of a circle.
2. It is always twice the length of the radius.
3. The diameter is the longest distance that can be measured across a circle.
4. The formula to calculate the diameter is d = 2r.
5. The diameter is an important measurement when working with circles and their properties.

Understanding the concept of diameter is essential for solving problems related to circles and their various applications in mathematics and science.