# 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. “Through the given point C, draw the line EF at right angles to AB; set off from C the radius r of the given circle. Join G and F. With G and F as centers draw the arc crosses m and n. Join mn, and where it crosses the line EF is the center of the required circle.”

### 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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