# Construction Of A Center And Radius Of A Circle That Will Tangent A Given Circle And Line

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An illustration showing how to construct the center and radius of a circle that will tangent a given circle and line. “From C, erect the perpendicular CG; set off the given radius r from C to H. With H as a center and r as radius, draw the cross arcs on the circle. Through the cross arcs draw the line IG; then G is the center of the circle arc FIC, which tangents the line at C and the circle at F.”

### Keywords

geometry, circle, circles, tangent, Circumference, geometric construction, construct, center and radius of circle, tangent to line and circle### Galleries

Geometric Constructions### Source

Albert A. Hopkins *Scientific America: Handy Book Of Facts And Formulas* (New York: Munn & Co., Inc., 1918) 35

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