Question

Three horses are tied at 3 corners of a triangular plot having sides 20m, 30m and 40m with ropes of 7m length each. Find the area where the horses can graze?

Answer 1

area of grazed plot=area of 3 sectors
r=7
so area=(theta*1/360*\pi*r^2)+(theta*2/360*\pi*r^2)+(theta*3/360*\pi*r^2)
=77 cm^2 ans.....