If R, RD ( line over RD)is a radius and DF (line over DF) is a tangent segment. Which statement must ve true? a) RD=DF b)RD=RF c
2 answers:
Answer:
c)Triangle RDF is a right triangle.
Step-by-step explanation:
Let us assume that we have a circle with center R, which has a radius(a line joining the center of a circle to a point on its circumference) RD. Drawing a tangent (a straight line that touches a circle at a point) externally to RD forms an angle of with RD. Also, the tangent is perpendicular to RD if extended.
Therefore if we join R to F, we have a triangle RDF. The suitable option is that triangle RDF is a right triangle.
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