If the data for the 1:00 hour were not included how would the mean and median change

What is the measure of angle tvu shown in the diagram below

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9

Yo need asap pls ! markin da brainiest too !