Could someone help me with my Proving triangles congruent worksheet. The photo of the worksheet and the problems below. The photo will look very weird but just click on it and zoom in on a problem you would like to do and it should fix itself. If someone could help that would be amazing

How do i get the answer for 2/3 * 10/3

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).

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.