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Geometry & measuresCommon

Area of a sector

The sector shaded inside its whole circle, so its area is a fraction of the circle's area: angle out of 360. Moves to a given diameter, then reflex angles.

A free GCSE Foundation and Higher geometry and measures lesson on area of a sector, spec code G18. It has a lesson deck to teach from with a visualiser, a worksheet with answers, a puzzle, an exit ticket, end of unit tests and a method video.

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