Question

Q.8 A cow is tied to a peg at one corner of a square shaped grass field of side 15 m by means of a 5m
long rope. Find the area of that part of the field in which the horse can graze.​

Answer 1

Answer:

Step-by-step explanation:

Side of square=15m

Length of rope=5m=radius

The area available for horse to graze is nothing but "Area of Quadrant of a circle'

∴ Area of Quadrant =

4

π×r

2

​

=

4

3.14×5×5

​

=19.625m

2

If the length of rope is increased to 10m then the new radius ,=10m

∴ Area of new quadrant =

4

3.14×10×10

​

=78.5m

2

∴ Increase in grazing area =78.5−19.625=58.875m

2

Answer 2

horse is not tied it can go all over.....