Find the area of a square, one of whose diagonals is 4.8 m long. SSC SSC CGL Tier 1 Easy Lines & Angles MCQ Question Find the area of a square, one of whose diagonals is 4.8 m long. Options A. 12.5 m² B. 10.5 m² C. 9.5 m² D. 11.52 m² squarediagonalareageometry