[填空题]
The lengths of the si : r1egs.;ligydes 0zln;ue05 mz dof a rectangular plate are measured, and the diagram shows the measured values with their uncertam5u el0;z 0nzdinties. 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 uncertainties need to ba52+:99tgna erwmg8 q) cjw ebe added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one g8 9)e2a9gqcat+wejn r mb5:wpart in 25 or 4%. Adding the uncertainties gives 6%.