1 Sqare Meter - Maths Online Tutoring

1 Sqare Meter - Maths Online Tutoring 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