A superb solution here from EJ during our 1-2-1 online maths tutoring session this week!
Question is from WJEC Higher Tier paper | GCSE Nov2017.
EJ visualised the context by jotting down two simple sketches, each labelled with the given dimensions. He formed an expression for area of each square, expanding the brackets and adding to obtain an expression for total area. This expression was equated to 22.5 and the equation was then simplified to show the given result. Great job!
Comments