Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
In this context, "radius" refers to one of the parameters (variables) passed into the `calculateCircleArea` method. It represents half of the diameter of a circle and is used to calculate its area.
A parameter is a variable declared in a method's signature or definition that receives values when calling/invoke that method.
Diameter: The diameter refers to any straight line segment passing through the center point of a circle, connecting two points on its circumference.
Area: In mathematics, "area" refers to how much space or surface an object occupies or covers. In this case, it specifically relates to calculating how much space an entire circle occupies given its radius.