Question

A horse is tied with a rope to one corner of the square field of side 70 m. If the length of the rope is 7m find the area the horse cannot graze

Answer 1

The area the horse cannot graze is 4861.5 m²

We know, a square of side 'a' m has an area of a² cm².

So, the area of the field of side 70m is (70)² m² = 4900 m²

Since  the horse is tied at the corner of the field, it can graze an area equal to one quadrant of radius 7m.

Area grazed = (1/4)*П*7² m²

= (1/4)*(22/7)*49 m²

= 38.5 m²

Area left ungrazed = 4900 m² - 38.5 m²

= 4861.5 m²