Congruence & Proof | OCR GCSE Maths Higher | 40 Worked Examples (J560)

Congruence and geometric proof for OCR GCSE (9-1) Mathematics Higher tier (J560). 40 exam-style questions with fully worked, mark-scheme-annotated solutions: identifying and applying the four congruence cases (SSS, SAS, ASA, RHS), recognising why SSA is ambiguous and never a valid case, writing corresponding sides and angles from a congruence statement, structured fill-in-the-reason proofs in OCR’s own style, and the full set of proofs that apply congruent triangles, base angles of an isosceles triangle, diagonals of a parallelogram and rhombus, the kite’s axis of symmetry, the perpendicular bisector, and the perpendicular from a circle’s centre bisecting a chord. Progressive Easy to Challenging difficulty. Every proof is set out as three justified facts, a named case and a conclusion, exactly how OCR awards the B marks, with an arrow annotation on every working line and the marks folded in on the real mark-scheme lines. Built for OCR’s no-formula-sheet exam, so the pack opens with the four cases and the reasons toolbox you must recall from memory. Calibrated against OCR J560 past papers and mark schemes (spec 9.02a and 9.02b, DfE refs G5 to G19), not ported from another board. Diagram-rich throughout, with labelled triangles, tick marks and right-angle markings on every geometry question. Ideal for revision, homework, and 1-1 tuition.