it was decided to lay tiles in the room of haris house with tiles in the shape of trapezium . The parallel sides of a tiles is 50cm and 30cm and the distance between them is 20cm . If 400 tiles are needed to lay tiles in the hall ,find the area of the hall in sqm
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1/2 ( a+b) h
=1/2 (30+50)×20
=1/2(80×20)
=1/2×1600
=800 cm^2
Area of hall =800×400
=320000
=3200 m^2
=1/2 (30+50)×20
=1/2(80×20)
=1/2×1600
=800 cm^2
Area of hall =800×400
=320000
=3200 m^2
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