Calculating Arcs and Areas of Sectors of Circles

This lesson unit is intended to help you assess how well students are able to solve problems involving area and arc length of a sector of a circle using radians. It assumes familiarity with radians and should not be treated as an introduction to the topic. This lesson is intended to help you identify and assist students who have difficulties in:

• Computing perimeters, areas, and arc lengths of sectors using formulas.
• Finding the relationships between arc lengths, and areas of sectors after scaling.