Educational math diagram illustrating the formula for the area of a circle sector, featuring a blue sector with a 10 cm radius and an example calculation.
A green educational graphic showing a circle sector with a 10 cm radius and a formula for calculating the area of a sector: (x/360) × πr², with an example area of 103 cm². The text includes "Geometry," "Circle Sectors, Segments, and Arcs," "Area of Sectors and Segments, and Length of Arc," "GCSE Maths," and the website "mmerevise.co.uk."