Stage 4 · Length · Describe the relationships between the features of circles · Topic: Length & perimeter · Year 7, 8
Establish the arc length formula (l = θ/360 × 2πr) where l is the arc length and θ is the angle subtended at the centre by the arc
Dot point ID k-10-2022-stage-4-length/len-des-stg4-05 · NESA code MA_K_10_CP_LEN_DES_STG4_05 · See it on the NSW Curriculum website ↗
↩SupportBuild the prerequisite skills first · 0 resources★EnrichExtension & rich tasks · 2 resources
Outcomes for this focus area (MA4-LEN-C-01)
MA4-LEN-C-01 applies knowledge of the perimeter of plane shapes and the circumference of circles to solve problemsCore resources for this dot point
On-level resources, grouped by type. Need the building blocks? Use Support. Ready for more? Use Enrich.
Worksheet
- Corbettmaths practice questions: Circles: arc lengthUse it for: Free printable graded practice questions (with answers) on circles: arc length for drill or a quick check.
Video
- VideoStarterCorbettmaths video: Circles: arc lengthUse it for: Short worked-example video on circles: arc length to model the method before practice or for flipped revision.
Focus area resources
Checked resources for Length as a whole (not mapped to a single dot point).