In the figure alongside, ( ) = ( ), = 8,ℎ
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Step-by-step explanation:
The area of the pentagonal field,
ar(ABCDE)=ar(△ABC)+ar(△AFE)+ar(EFDH)+ar(△DHC)
Area of △ABC=21×base×height
=21×AC×BG[AC=AF+FG+GH+HC=50+50+40+30=170]
=21×170×50
=85×50
=4250 m2
Area of △AFE=21×base×height
=21×FA×EF
=21×50×30
=50×15
=750 m2
Area of trapezium EFDH=21×(sum of parallel sides)×height
=21×(EF+DH)×
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