Four cows are tethered at four corners of a square plot of side 50m, so that they just cannot reach one another. What area will be left un-grazed?
Side of square = 50m
Area of square = (5)2 = 2500m2
Radius of quadrant circle = 25m
Area of one quadrant =
Area of 4 quadrants =
So,
Area which left un-grazed = 2500-1964.28 = 535.72m2