One of the legs of a right triangle measures 3 cm and it's hypotenuse measures 6 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted