[填空题]
The lengths of the sjm*k r:8*h 3kbnj7vbj/fb/l e 8;ccgilk98 l uides of a rectangular plate are measured, and the diagram shows the measured values with their uncertaintieic8llc9 8g;k us. 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 uncvv9)7u r3 tykyertainties need to be added. Uncertaink)7t uyv 9v3yrty 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%.