The lenght of a rod is measured to be 2.48 m to the nearest cm
(a) Find the range of its true length
(b) If the rod is cut into 5 equal parts, find the range of the true lenght of one of these rods
中二數學--nearest value
2011-12-29 8:36 am
回答 (1)
2011-12-29 6:50 pm
✔ 最佳答案
(a) 2.48 m = 248 cmSo, the range of its ture length is between 247.5 cm and 248.5 cm
(b) Tthe range of the true lenght of one of these rods is between
247.5/5 = 49.5 cm and 248.5/5 = 49.7 cm
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