Centre of a Circle Tangent to Two Parallel Lines
For:
$$Ax+By+C_1=0$$
and:
$$Ax+By+C_2=0$$
the centre lies on the midline:
$$Ax+By+\frac{C_1+C_2}{2}=0$$
Usage
- Used to determine the locus of centres of circles tangent to two parallel lines.
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CAT Formulas
Circles
Centre of a Circle Tangent to Two Parallel Lines
Centre of a Circle Tangent to Two Parallel Lines
For:
$$Ax+By+C_1=0$$
and:
$$Ax+By+C_2=0$$
the centre lies on the midline:
$$Ax+By+\frac{C_1+C_2}{2}=0$$
Usage
- Used to determine the locus of centres of circles tangent to two parallel lines.
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