lexybellx3
14.02.2020 •
Mathematics
The point (-3, 2) lies on a circle. What is the length of the radius of the circle if the center is located at (-1, 5)?
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Ответ:
R: √(13)
Step-by-step explanation:
Distance formula:
r^2 = (x-h)^2 + (y-k)^2
Center: (h,k)=(-1,5)
Circle: all points of (x,y)=(-3,2)
r^2=(-3+1)^2 + (2-5)^2
r^2=(-2)^2 + (-3)^2
r^2= 4 + 9
r^2=13 ((r^2)^(1/2)) = 13^(1/2) = 3.6055
Ответ:
Its alternate interior
Hope this helped :)