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double op;. System.out.println(Введитечисло);. op = num.nextDouble();. System.out.println(ответ);. System.out.println(Math.rint(op));. doublezx;. double cv;. System.out.println(Введитедлинну);. cv = num.nextDouble();. d//19 case 19: double op; System. out. println(" Введитечисло" ); op = num. nextDouble(); System. out. println(" ответ" ); System. out. println(Math. rint(op)); break; //20 case 20: doublezx; double cv; System. out. println(" Введитедлинну" ); cv = num. nextDouble(); double xc; System. out. println(" Введитеширину" ); zx = num. nextDouble(); xc = cv * zx; System. out. println(" ответ" ); System. out. println(xc); break; //21 case 21: doublebn; doublevb; System. out. println(" Введитедлинну" ); vb = num. nextDouble(); double kl; System. out. println(" Введитеширину" ); bn = num. nextDouble(); kl = (bn + vb) * 2; System. out. println(" ответ" ); System. out. println(kl); break; //22 case 22: doublesd; doublefg; System. out. println(" Введите сторну квадрата" ); fg = num. nextDouble(); sd = fg * 4; System. out. println(" ответ" ); System. out. println(sd); break; //23 case 23: doublesz; double dx; System. out. println(" Введите сторну квадрата" ); sz = num. nextDouble(); dx = sz * sz; System. out. println(" ответ" ); System. out. println(dx); break; //24 case 24: double fc; doublegv; doublejn; System. out. println(" Введите 1 сторнутреугольника" ); fc = num. nextDouble(); System. out. println(" Введите 2 сторнутреугольника" ); gv = num. nextDouble(); System. out. println(" Введите 3 сторнутреугольника" ); jn = num. nextDouble(); doublehb; hb = fc + gv + jn; System. out. println(" ответ" ); System. out. println(hb); break; //25 case 25: double km; System. out. println(" Введитерадиус" ); km = num. nextDouble(); System. out. println(" ответ" ); System. out. println(Math. PI *(km*km)); break; //26 case 26: double kmй; System. out. println(" Введитедиаметр" );
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