What is the radius of a circle that has a circumference of 81.64 meters?

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Answer question above and explain each step : )

Identify the number as a rational or irrational.explain. 127