# Four cows are tied with a rope of 7 cm at four corners of a quadrilateral field of unequal sides. Find the total area grazed.

let the angles be angle x, angle y, angle w, angle z

area grazed = pi/360 X r

^{2}( angle x + angle y + angle w,+ angle z)

since angles in a quadrilateral add upto 360, angle x + angle y + angle w,+ angle z= 360

area grazed = 22/7 X 7 X7 360/360

area grazed = 154 m2

hope this helps