Pls show work and solve :( , I give brainliest to 1st right answer

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample

Algebraically prove that a clockwise and counterclockwise rotation of 180° about the origin for triangle abc are equivalent rotations.