What area is the darkened image A in the grid? A. 3,75 (units) B. 3,5 (units) C. 3,25 (units) D. 3 (units)14/20What area is the darkened image A in the grid? 3,75 (units)3,5 (units)3,25 (units)3 (units)Giải thíchChọn B