Compound two-dimensional shapes and the surface area of solids

What this note covers

1. Perimeter: the distance around the boundary
2. Circles, arcs and sectors
3. Area formulas and choosing the right one
4. Compound areas by addition and subtraction
5. Surface area from a net
6. Surface area of curved solids
7. Costing a job: from area to dollars
8. How this topic is examined and what separates a top-band answer

8 sections · 12 key terms & formulas · 6 common mistakes