Question

the two adjecent sides of a parellelogram are 60 m and 40 m and one the dignol is 80m long what is a area of a parellelogram​

Answer 1

=> S(△ABC)=60+80+402=90

=> ar△ABD

=> √90(90−80)(90−60)(90−40)

=> √90×10×30×50

=> 300√15m2

=> ar◻ABCE=2×ar△ABD

=> 600√15m2

I hope this will help you dear..

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