16S3: EM Circular Measure-Radian, Arc length and Area of a sector by Gary Ang | May 30, 2016 | 16S3, Board-casts | 0 comments [vimeography id="563"] In this lesson, we discussed the radian measure of an angle, the arc length and area of a sector. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ