Question

A horse is tied to a peg at one corner of a square shaped grass field of side 15 m by means of a 7 m long rope. The area of that part of the field in which the horse can graze is

Answer 1

let ABC be the square field

length of rope = 15m

hence r= 7m

area of sector = ○/360°×3.14×15*7

=90°/360°×3.14×105

= 1/4×3.14×105

=1×3.14×105/4

=82.425