M Mensuration 11 - NCERT
also split such a quadrilateral into two triangles , find their areas and hence that of the parallelogram. Does this agree with the formula that you know already? (Fig 1 1.12) 11.4.1 Area of special quadrilaterals We can use the same method of splitting into triangles (which we called “triangulation”) to find a formula for the area of a ...
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