This math topic focuses on understanding the relationship between the diameter and radius of a circle, which is foundational in 2-dimensional geometry. Specifically, it provides problems that practice finding the radius when given the diameter. The questions are simple and are part of a broader module on classifying 2D shapes. Each problem presents several answer choices, only one of which correctly identifies that the radius is half the diameter of the circle. This topic allows for revision and reinforcement of basic circle geometry concepts.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
If 'd' is the diameter, what is the radius 'r'?