Правильно выполненное сечение А_А показано на рисунке:<img src="/close/store/examRes/%7B1CF35613-D696-400C-9573-78CDD6F09892%7D/IG_22.jpg" /><img src="/close/store/examRes/%7B1CF35613-D696-400C-9573-78CDD6F09892%7D/IG_22_3.jpg" /><img src="/close/store/examRes/%7B1CF35613-D696-400C-9573-78CDD6F09892%7D/IG_22_1.jpg" /><img src="/close/store/examRes/%7B1CF35613-D696-400C-9573-78CDD6F09892%7D/IG_22_4.jpg" /><img src="/close/store/examRes/%7B1CF35613-D696-400C-9573-78CDD6F09892%7D/IG_22_2.jpg" /> <img src="/img/af/adc581e4ec855fb8dc09bbd981.jpg" />, <img src="/img/d9/d39c6a7f301592b7fb7f55bfc0.jpg" />, <img src="/img/2b/a81e06c0e2be06add2122d7a96.jpg" />, <img src="/img/18/f5dcef936b472b9951190d340c.jpg" />