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allabout
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Yurik79
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allabout
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Nayan
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Is there answer choices?

My expln:
Radius of the circle
pi*r^2 = 154
r = sqrt(154 / pi)

rad of the tree
2*pi*r = 44
r = 22/pi

Length of head and neck = 25.

So L = sqrt(154 / pi) - 22/pi - 25

Or do we have to consider whether with this L goats can reach each other or not because they care not in harmony???
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thearch
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Radius of the fence= 700cm
Radius of the tree= 7 cm
"Radius" of the neck+head= 25cm

Answer should be 668 cm
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allabout
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Yep, it's 668 cm

@ nayan

- approximate PI with 22/7
- take care of units given

and your choice fits



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