x = 2.488

x = 2.45

x = 2.35

x = 1.95

83.53814

117.853257

68.052110

?28.347394668

117.853249796849

68.05210963589

?28.3473946668611

83.53832

117.853249796861

68.05210963599

?28.3473946668607