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A fence encloses a square field whose sides measure 10m. A horse is tethered on a rope that is attached to a corner post of the field so that the horse is outside the fence.If the rope holding the horse is 20m long, find the total grazing area of the horse in square metres. 

 Dec 29, 2021
 #1
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don't rly wanna explain why im doing what im doing cus the diagram I made to solve this is kinda weird

 

20^2 * pi = 400pi

3/4 (400pi) = 300pi

10^2 * pi = 100pi

100pi/2 = 50pi

300pi + 50pi = 350pi

answer is 350pi

 Dec 29, 2021
 #2
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Horse will have 3/4 of a circle of radius 20    and two 1/4 circles of radius 10

 

3/4 pi (20)^2   +  2 * 1/4 * 10^2 * pi = 350 pi    m2   

 

 

 Dec 29, 2021

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