Question

A cow is threaded with rope 15 feet long. What is maximum area the cow can graze ?

Answer 1

Answer:

the radius = 15 feet,

to find the area the vow can graze

the area the cow can graze will be equal to the area of circle with radius equal to the length of the rope from the point of pole to which it is tied.

therefore A = πr²

=> 22/7 × 15×15

=> 707. 14 sq feet

Answer 2

Answer:

Aha, so who wants to be a cow to solve this problem...do you wanna be it?

Let's see how it's done.

You have to understand the concept that the cow will ,make a circle shape, while grazing.

Step-by-step explanation:

Now, that dotted circle in the first diagram is actually the path,the cow will make whilst grazing.

So if we find the area of that circle, then we can find out the maximum area the cow can graze,(the thread won't increase)

in that dotted circle, radius of the circle is 15 feet (length of the thread)

and we know, area of a circle is ((radius)^2×22)/7.

or, radius of the dotted circle = ((15×15)×22)/7 = 706.5 cm square.

So the maximum area that the cow can graze is 706.5 cm square,

make sure you drink cow's milk every day to become strong and intelligent. Lots of love from Kolkata, WB