lx ly ix iy Wx Wy 100×100 100×100 6 8 10 21.9 17.2 383 134 4.18 2.47 76.5 26.7 125×125 125×125 6.5 9 10 30.31 23.8 847 294 5.29 3.11 136 47 150×150 150×150 7 10 13 40.55 31.9 1660 564 6.36 3.73 221 75.1 175×175 175×175 7.5 11 13 51.43 40.4 2900 984 7.5 4.37 331 112 200×200 8 12 16 64.28 50.5 4770 1600 8.61 4.99 477 160 #200×204 12 12 16 72.28 56.7 5030 1700 8.35 4.85 503 167 250×250 9 14 16 92.18