Area is the quantity that expresses the extent of a given surface on a plane and it is a derived quantity of length. Area is obtained from product of two lengths. The SI Unit of square metre (m2).
square metre can be expressed into other units like square-centimeter (cm2), square-millimeter(mm2) or square-kilometer (km2).
1 m2 = 1m x 1m
but 1m = 100cm
hence 1m2 =100cm x 100cm
and so 1m2 =10000cm2
similarly;
1m = 1000mm (millimeters)
1m2 =1000mm x 1000mm =1000,000 mm2.
1 km2 =1000m x 1000m = 1000,000 m2.
we will go ahead and convert area in square meters to some other units
Express the following into square-centimeter (cm2)
- 8.2 m2
- 5.4 m2
- 0.078m2
- 0.000000000064 km2
solution
- 1m2 =100cm x 100cm=10000cm2
1m2 =10000cm2
8.2m = ?
2.
1m2 =100cm x 100cm=10000cm2
1m2 =10000cm2
5.4=?
3.
1m2 =100cm x 100cm=10000cm2
1m2 =10000cm2
0.078=?
4.
1km2 =1000m x 1000m=1000 x 100 cm x 1000 x 100 cm
1km2 =10,000,000,000cm2
0.000000000064 km2 = ?
Example
convert the following into m2
- 4500 cm2
- 0.0072 cm2
solution
1.
1m2 = 10000cm2
? = 4500cm2
2.
1m2 = 10000cm2
? = 0.0072 cm2
Related pages
- Physical Quantities
- Length
- Reading a meter rule
- Measuring with a meter rule
- Area
- Area of irregularly shaped surfaces
- Volume
- Volume of regularly shaped objects
- Measuring volume of liquids
- Volume of irregular solids
- Measuring Mass
- Density
- Densities of some substances
- Questions on Measurements
- Using metre rule
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