10904697 https://uchebnik.mos.ru/cms/system_2/atomic_objects/files/010/904/697/original/mv_7_1_13_1.png https://uchebnik.mos.ru/cms/system_2/atomic_objects/files/010/904/697/icon/mv_7_1_13_1.png \text{Выберите правильную формулу площади изображённой фигуры.} [{"id": "b5a5hd", "text": "", "content": [{"type": "content/math", "position": 0, "content": "S(a)=26a^2", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "vbgi12", "text": "", "content": [{"type": "content/math", "position": 0, "content": "S(a)=21a", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "ir01d4", "text": "", "content": [{"type": "content/math", "position": 0, "content": "S(a)=21a^2", "is_multiline": true}], "text_styles": [], "block_styles": []}, {"id": "4xassi", "text": "", "content": [{"type": "content/math", "position": 0, "content": "S(a)=26a", "is_multiline": true}], "text_styles": [], "block_styles": []}] image