# Construction Of The Center And Radius Of A Circle Tangent To Triangle Sides

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An illustration showing how to construct a center and radius of a circle that will tangent the three sides of a triangle. “Bisect two of the angles in the triangle, and the crossing C is the center of the required circle.”

### Keywords

geometry, circle, circles, radius, tangent, center, Circumference, geometric construction, construct, circle tangent to sides of triangle### Galleries

Geometric Constructions### Source

Albert A. Hopkins *Scientific America: Handy Book Of Facts And Formulas* (New York: Munn & Co., Inc., 1918) 37

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