**Definitions:**

**Centimeter Square** (abbreviation: **cm2**): is the SI derived unit of area. It is the area of a square whose sides measure exactly one centimeter. The square centimeter is derived from the SI base unit of the metre, which itself is the length of the path travelled by light in absolute vacuum within time interval of 1/299,792,458 * 1/100 of a second.

**Inch Square** (abbreviations: **in2, or si**): (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch.

## How to Convert Centimeters Square to Inches Square

*Example: How many inches square are equivalent to 71.98 centimeters square?*

As;

1 centimeters square = 0.155 inches square

71.98 centimeters square = Y inches square

Assuming Y is the answer, and by criss-cross principle;

Y equals 71.98 times 0.155 over 1

(i.e.) Y = 71.98 * 0.155 / 1 = 11.1569 inches square

Answer is: 11.1569 inches square are equivalent to 71.98 centimeters square.

*Practice Question: Convert the following units into in2:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 41.12 cm2

( ii ) 56.11 cm2

( iii ) 47.87 cm2