what is 70cm and 40cm in inches?

One inch = 2.54 centimeters.

Divide the number of centimeters by 2.54 to find the number of inches.

http://www.eslus.com/Gizmos/inchcm.html

To convert centimeters to inches, you can use the following conversion factor: 1 inch = 2.54 centimeters.

To convert 70 cm to inches:
70 cm * (1 inch / 2.54 cm) = 27.56 inches (rounded to two decimal places)

To convert 40 cm to inches:
40 cm * (1 inch / 2.54 cm) = 15.75 inches (rounded to two decimal places)