Question

a cow is tied with a rope 49 m long to pole on a greasy field .find the area of the field over which the cow and graze

Answer 1

the area would be circular
radius of circle=49m
Area of circle=πr²=22/7×49×49
=7546m²

Answer 2

Heya friend!!

If the rope is tied with a cow from one end and to a pole from the other end so the pole becomes the centre and the rope is the radius.

So Area of Field= $\pi r^{2}$
=22/7*49*49
=7546$m ^2$

so the area is 7546 metre square.

Hope this helps! ^-^