This math topic focuses on calculating the area of a circle using the radius and the mathematical constant π (pi). Learners are asked to express the area as a function of π for various circles, which involves applying the formula for the area of a circle: A = πr² (where 'r' is the radius). The exercises are varied, providing multiple-choice answers for each circle's area, listed in terms of π. This topic is designed to enhance understanding of geometry, specifically in the context of cylinders, and is part of an introductory module on this subject.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.