40 mSome measures are given in theadjacent figure, find the area ofDAB – InterviewSolution

1.	40 mSome measures are given in theadjacent figure, find the area ofDABCD.13 m9 m>60m
Answer» Triangle ABD is a right triangle,SoBD^2=AB^2+AD^2=BD^2=(40m)^2+(9m)^2BD^2=1600m^2+81m^2=1681m^2BD=root1681or,BD=4cmarea of triangle ABD=1/2×9m×40m=180m^2In triangle TBD ,area = 1/2×30×13=195m^2 area of quadrilateral = 180+195+195=570 m^2

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