Question

A goat is tethered to the center of square field of side 20 m by a rope 10 m long. Find what fraction of the grass on the field the goat is able to eat.


Answer should be 11/14.

Answer 1

First we have to find,

Area of square=side×side

=20×20

=400 sq.m

Now refer the diagram which I am sending with this ans

So find area of circle, radius =10m

Area=π×r×r

=22/7×10×10

=22/7×100 sq.m

Now take the ratio of

Area of circle:Area of square

=22/7×100:400

=22 ×100/7×400

=2200/2800

=22/28

=11/14

So here is your ans

11/14 is the fraction of the grass on the field the goat can eat

If any query plz. comment

I hope this will help

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Plz.refer the diagram neatly......

Answer 2

Answer:

A= side x side

20 x 10=200