# 1 Sqare Meter

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Definition: - The area of a surface, whose each equal side is equal to one meter is called square meter and it is also known as meter square (m^2). This figure shows a square where all the four sides are equal to 1 meter.
Hence the area of surface enclosed by four sides is 1 square meter or 1 meter square.

1 square meter is the standard international (SI) unit
of measuring area of a surface.

Sub- multiples of standard unit area: -
♦ 1 square centimeter (cm ^2)
♦ Hectare
♦ One square kilometer (km ^2)

Relation between 1 square meter, centimeter square and hectare: -

1 m^2   = 1 m * 1 m
= 100 cm * 100 cm
= 10000 cm^2
= 10 ^4 cm^2
Therefore, 1 m^2 = 10^4 cm^2

1 hectare = 100 m * 100 m
1 hectare = 10000 m^2
1 hectare = 10^4 m^2
Therefore 1 m^2 = 10 ^ (-4) hectare

1 km^2 = 1000 m * 1000 m
=1000000 m^2
= 10^6 m^2
1 m^2 = 10 ^ (-6) km^2

Question 1: - A school hall measure 20 m in length and 12 meters in breadth. Find its area in square meter.

Solution: - Area of school hall     = length * breadth
= 20 m * 12 m
= 240 m^2

Question 2: - The length of a school compound is 450 m and breadth is 145 m. find the area of the compound in square meter.

Solution: - Area = length * breadth
= 450*145 m^2 = 65250 m^2