Area of a Circle from Diameter (with hint and calculator)

This math topic focuses on the area of a circle, emphasizing how to calculate it from the diameter. The students use the formula A = πr², where r is half the diameter (d/2), to solve the problems. This topic provides step-by-step guidance, hints, as well as a calculator for each problem. It forms part of an introductory unit on Geometry with a special focus on circle areas.