This is a math topic centered on learning and practicing the calculation of the area of a circle from its radius. It is a part of geometry, specifically the introductory components of determining a circle's area. The topic instructs students to calculate the area without using a calculator and encourages the estimation of pi as a number slightly more than 3. The topic provides multiple-choice questions with answer options to facilitate understanding and application of the formula for finding the area of a circle.

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