[填空题]
The lengths of the sides of a rectangular plate are measured, and the diz -06k7fp wfs e bdwwqlq+6;3ragaoenn ..l xb4+ram shows the measured values with their uncertai.xleabno +.4n nties. What is the percentage error in the area of the plate? %. (Remember to exclude the % symbol with your answer.)
参考答案: 6
本题详细解析: Area involves a multiplication so theplwiq fg+v v)*yth) /1hem9t- percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in th)tt)e yglh/ pw 9qiv*vh+1fm- e height it is one part in 25 or 4%. Adding the uncertainties gives 6%.