Current Affairs 5th Class

Mensuration

Category : 5th Class

MENSURATION

FUNDAMENTALS

Perimeter, the length of the sides enclosing the figure is called its perimeter.

Perimeter of square\[=4\times \,\,side=4a\]

Perimeter of rectangle = 2 (length + breadth)\[=2(l+b)\]

Perimeter of triangle = sum of its sides\[=(AB+BC+CA)\]

Area: The area of any figure is the plane space occupied by it or the amount of surface enclosed within its boundary lines.
It is measured in square units i.e. Square meter\[({{m}^{2}})\], Square centimeter \[(c{{m}^{2}})\]etc.

Area of square\[={{(side)}^{2}}={{a}^{2}}\,\,sq.\,\,unit\]

Area of rectangle= length \[\times \] breadth\[=l\times b\]Sq. unit.