[填空题]
The lengths of the sidessyh/y m* - kx9 g*/ jhs wak*25npqkwn1how.(m of )jkg,qhfi2i, n l3v ))7txo -fr+hgj 9bcmt4 da rectangular plate are measured, and the diagram shows the measured values with their uncertaintiesgi-7)fg+jmi2dh hcj,9 o, nx4fbt)v)kl q3 tr. 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 uncertaintigo(du 1(yjlm6elc j02 es need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertaintidl1 2ujc6lge(om0 y (jes gives 6%.