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A man walking at the speed of 4 kmph crosses a square field diagonally in 3 minutes. the area of the field is.?
Wiki User
∙ 13y ago
4 km/h = 4,000/60 meters per minute
3 minutes at this speed = 12,000/60 = 200 meters
The diagonal of a square = (length of the side) x sqrt(2) .
Length of the side = (diagonal)/sqrt(2)
Area = (side)2 = (diagonal)2/2 = (200)2/2 = 20,000 square meters
Wiki User
∙ 13y ago
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