Circles and Conic Sections · Geometry & Measurement

Arc Length and Sector Area

Calculating portions of a circle's circumference and area using proportional reasoning.

Key Questions

  1. 1How is the measure of an arc in degrees different from its length in linear units?
  2. 2What is the relationship between the area of a sector and the area of the entire circle?
  3. 3How do radians provide a more direct link between radius and arc length than degrees?

Common Core State Standards

CCSS.Math.Content.HSG.C.B.5
Grade: 10th Grade
Subject: Mathematics
Unit: Circles and Conic Sections
Period: Geometry & Measurement

Suggested Methodologies

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