← 2.6 Area of a Part of a Circle
Arcs and sectors
Mathematics · Grade 10 · about 40 minutes
Taking the right fraction of a circle, and why every formula here is the same idea.
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- 9 sections of explanation, worked examples and diagrams
- 2 practice tasks with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Arcs and sectors
- Segments and applications
- Area of an annulus
- Finding a missing radius of an annulus
- Minor and major sectors
- Perimeter of a sector
- Finding the angle or radius of a sector
- Area of an annular sector
- The chord and the isosceles triangle
- Minor and major segments in depth
- Common region of two intersecting circles
- Gardens, tracks, dartboards and paths