[填空题]
The lengths of the sides of a rectangular plate are measur05bjg/w os.r cugb j6wr:w -0ced, and the diagrad6- n(mh8fl7*hwd am*aqixn4 4yw1nem shows the measurel(n4awyinhd x qw *mmhf8dn - e*4a716d values with their uncertainties. 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 the percentage unc c7cbz3 4o+y2hbz7g,mt9 c rzqertainties need to be added. Un 273gcccqz4ymt bzzoh7r, +b9certainty in length is one part in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
