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What is 1 + 3?
what is a tangent to a circle?
line in the plane of the circle that intersects the circle in exactly one point
what is the point of tangency?
the point where a circle and a tangent intersect
if a line is tangent to a circle, then the line is _____ to what?
perpendicular to the radius dawn to the point of tangency
p.663, example 1. what is the falue of x?
if a line in the plane of a circle is perpendicular to a raidius at its endpoint on the circle, then the line is ______ to the circle
the two segments ____ to a circle from a point outside the circle are _______
go to p. 665, #1.
p. 665, #3
p. 665, #9.
p. 666, # 11.