Mathematics: Analysis and Approaches · Topic 3: Geometry and trigonometry

SL3.4 — Radian measure, arcs and sectors

Mathematics: Analysis and Approaches · SL / HL · syllabus-mapped notes

1. Radian measure

   Measure angles in radians and convert to and from degrees.

2. Length of an arc

   Find the length of a circular arc from the radius and the angle.

3. Area of a sector

   Find the area of a pie-slice region of a circle.