Can someone plz ? i'd really appreciate it.

given: (check the picture given below)

prove: δcbf ≅ δedf using isometric (rigid) transformations.

outline the necessary transformations to prove cbf ≅ edf using a paragraph proof. be sure
to name specific sides or angles used in the transformation and any congruency statements.

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).