When working with circles, it’s essential to understand the relationship between radius and diameter. In this post, we’ll explore how to calculate the diameter of a circle when given its radius.
The Formula
The formula to calculate the diameter (d) of a circle from its radius (r) is:
d = 2r
Calculating Diameter
Given a circle with a radius of 10 units, we can plug this value into the formula:
d = 2 × 10
d = 20 units
The Answer
Therefore, the diameter of a circle with a radius of 10 units is 20 units.