Yard Stake

Apr 27
2009



Yard Stake
A dog is tied with a rope to a stake in the ground. The length of the rope is 5 yards…?

What is the area in square yards the dog can roam?

1. 25 pi
2. 10 pi
3. 25
4. 20

Please explain why

well if you think about it the dog can only go in a circle around the stake, and since the rope is 5 yards long then the radius of that circle is 5. To find the area he can roam you just need to find the area of a circle with a radius of 5.

the formula for area of a circle is
a=pi x r^2
where pi=3.141 and r=the radius of the circle.
plug in five and square it to get 5 x 5 = 25

since the answer you want is in terms of pi then your answer is simply 25 pi

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