Tangents to a circle



O = point(2, 2)
C = circle(O, 2)
A = point(6.5, 2)
c = circle(O, A)
I J intersection(C, c)
color(lightgray)
draw(line(A, I))
draw(line(A, J))
color(black)
draw(O, plus)
draw(A)
draw(C)
draw(c, dotted)




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