Mathematics tips and queries queries

Mensuration 

Introduction

We have already learnt that perimeter is the distance around a close playing figure and its area is the part of the plane occupied by it.

We have also learnt to find the area of the pathways or borders of rectangular shapes in the previous class.

Other than rectangular shapes we can find areas of other geometrical shapes also.

Let us try to recall the areas of following : shapes :

Diagram.               Shape.                 Area

      Rectangle.            a×b

     Square.            a×a

     Triangle.       _1__ ×b×h

           

                Parallelogram.        b×h

                                                                                                                          

     

                                          2
                         Circle. πr

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