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Line touching circle at exactly one point
Point where tangent meets the circle
Always perpendicular
90°90°90°
m1imesm2=−1m_1 imes m_2 = -1m1imesm2=−1
−1-1−1
(x−a)2+(y−b)2=r2(x - a)^2 + (y - b)^2 = r^2(x−a)2+(y−b)2=r2
(a;b)(a; b)(a;b)
- rac{1}{m_{ ext{radius}}}
y−y1=m(x−x1)y - y_1 = m(x - x_1)y−y1=m(x−x1)
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