Two rods of length 2.6 cm and 3.5 cm are measured correct to the nearest 0.2 cm. The two rod are joined together, find the lower and upper limit of the new rod.
I get stuck. HOw to do?
2026-04-01 12:04:26.1775045066
Estimation, Upper limits, Lower limits
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Hint: If the rods are correct to the nearest $0.2$ cm, then the first rod is in actuality somewhere between $2.4$ cm and $2.8$ cm. The second rod is actually somewhere between $3.3$ cm and $3.7$ cm. From this information, what do we know about the shortest the combined rod can be and the longest the combined rod can be?