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what is the circumfrence and area of a circle that the center is (-1,0) and passes through (-3,0)

Guest Mar 1, 2017
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The distance from (-1,0) to (-3, 0)  = the radius  = 2 units

 

Circumference  = 2pi * r  =  2pi *2   =  4pi ≈ 12.56 units

 

Area  =  pi * (2)^2   =   4pi ≈ 12.56 units^2

 

 

cool cool cool

CPhill  Mar 1, 2017

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