[填空题]
The following diagram shows a rec9cd o0;j urbd;* , 02s.td cq nbjn;xqma2nup-tangle with sides of leyw5py,n-9t745ggl oeoos1 r qngth 7.6×10$^2$cm and 1.5×10$^3$cm.
1.Write down the area of the rectangle in the form a×10$^k$ , where1≤a<10 and k∈Z.
Natalie estimates the area of the rectangle to be 1200000 cm.
A= ×10$^6$
2.Find the percentage error in Natalie's estimate.
Using the percentage error formula ϵ= %
