You use a ruler or similar object that is marked with centimeters. If your ruler only has inches, measure the inches, then multiply with 2.54 to get centimeters.
centimeters
42 centimeters squared.
There are 30.48 centimeters in a foot.Divide 220 by 30.48 to find that 220 centimeters = 7.22 feet
5 x 12 = 60 sq. cm
The frame is 14 cm wide
centimeters
3 x 4 x 6 = 72 cubic centimeters
42 centimeters squared.
There are 3.9 kilometers in 390,000 centimeters. 100,000 centimeters = 1 kilometer. To find the number of kilometers in a number of centimeters, divide the centimeters by 100,000.
4x16x20cm= 1280 cubic cm
54 cm
There are 30.48 centimeters in a foot.Divide 220 by 30.48 to find that 220 centimeters = 7.22 feet
175.26 centimeters, can find in google or yahoo.
5 x 12 = 60 sq. cm
The frame is 14 cm wide
Square centimeters is surface Area (length x width). Multiply length in centimeters by width in centimeters to find square centimeters.You need to know the shape and possibly another dimension before this can be answered
You find cubic centimeters by measuring the volume of something.