Q1 of 35 Page 311

Today the cow of Amina bibi is fastened to a post with a rope of length 2.1 meter in the vacant field. Let us see by calculating how much maximum area the cow will graze.


Since the cow is fastened to the post, it can move in the area encircling the post with the length of the rope as the radius of that circular path.


Here, r = 2.1m


Maximum area = area of the circle


⇒ πr2 =value of π =


= 13.86m2


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2

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