Question

Ravi ties his cow on one corner of his field to graze. It is a rectangular field of length 15 m and breadth 7 m, what is the area the cow can graze? What
is the area left ungrazed?​

Answer 1

Answer:

66.5 $m^{2}$

Step-by-step explanation:

Here, area of rectangle= 15 x 7= 105 $m^{2}$

and, if the length of the rope(radius of circle) with which the cow is tied is equal to the breadth of the field, i.e., 7m, then

Area which the cow can cover is :

1/4 × ($\pi r^{2}$ )           since: 1/4 of the circle can be covered when the cow is tied to one corner of the rectangle.

So area it can cover=  1/4× [(22/7) × $7^{2}$]

=> 1/4×154

=> 38.5 $m^{2}$

So, area which it can't graze= 105 - 38.5

= 66.5 $m^{2}$

Hope it helps !!!

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Answer 2

Answer:

Answer:

66.5 m^{2}

Step-by-step explanation:

m

2

Here, area of rectangle= 15 x 7= 105 m^{2}m

2

and, if the length of the rope(radius of circle) with which the cow is tied is equal to the breadth of the field, i.e., 7m, then

Area which the cow can cover is :

1/4 × (\begin{gathered}\pi r^{2} \\\end{gathered}

πr

2

) since: 1/4 of the circle can be covered when the cow is tied to one corner of the rectangle.

So area it can cover= 1/4× [(22/7) × 7^{2}7

2

=> 1/4×154

=> 38.5 m^{2}m

2

So, area which it can't graze= 105 - 38.5

= 66.5 m^{2}m

2

Hope it helps !!!