Current location - Training Enrollment Network - Mathematics courses - The math textbook is 26 cm long, 0/8 cm wide and 0.8 cm thick. Is it appropriate to wrap the book cover with rectangular paper 40 cm long and 30 cm wide?
The math textbook is 26 cm long, 0/8 cm wide and 0.8 cm thick. Is it appropriate to wrap the book cover with rectangular paper 40 cm long and 30 cm wide?
18×2+0.8,
=36+0.8,
=36.8 (cm);
Because 40 cm > 36.8 cm, 30 cm > 26 cm;
Therefore, it is appropriate to wrap the book cover with rectangular paper with a length of 40 cm and a width of 30 cm.