This PowerPoint and resource pack goes through the higher level working out of areas under sectors of circles, and the lengths of arcs of circles.

There are activities laid out in the presentation to work through, with an extension "keyhole" task for the students that find the work less challenging.

Answers for everything are in the "PowerPoint question answers" file.


  • Extension-keyhole-task.docx
  • Sector-area-and-arc-length.pptx
  • PowerPoint-question-answers.docx

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This resource is designed for US teachers. View UK version .

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