Chapter 12 • Class 8 Mathematics
Circles
Study by topic — one focused page each
1
Radius, Diameter, Chord, Arc, and Sector
What is a circle and its basic parts? A circle is a perfectly round, flat shape where every single point on its boundary is exactly the same distance …
Start this topic → 2Circumference of a Circle
What is circumference? The circumference of a circle is the total distance all the way around its outer edge. It is simply the special perimeter of a …
Start this topic → 3Area and Applications of Circles
What is the area of a circle? The area of a circle is the total amount of flat two-dimensional space contained inside its curved boundary line. Think …
Start this topic →Chapter-wide tests
Online Test
10 MCQ • 15 min
IMO / Olympiad Practice
Olympiad level • 15 min
📝 Full Chapter Test (Download & Print)
35 marks • 75 min • with answer key