Current Affairs 5th Class

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.