Select all transformations that maintain a shapes congruency. help

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Which statement best explains why ben uses the width hi to create the arc at j from point k

52 cm radius = diameter = area = circumference = circumfer