Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 14
Areas and Perimeters
A bicycle wheel, the minute hand of a clock and the wiper of a bus window all move along a circle. How far does the wheel roll in one turn, and how much glass does the wiper clean? In this chapter you measure circles and rings, then arcs, sectors and segments, and then you find the area of any shaded design by adding and subtracting. It covers the unit of the Indian syllabus (NCERT and the board exams) and the matching topics of IGCSE, GCSE, Common Core and SAT Math. Python checks each formula.
3 courses
