[填空题]
The following diagram r,e t zv.i5,t; gyx9goggmd -su ,tuw/k*(.vq shows a rectangle with sides of length 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= %
