CAN SOMEONE HELP ME WITH THESE 2 questions please don’t answer if u don’t know !! Will mark u brainlist and will give u points !!!! It’s due in like 30 minutes!!!

Answer:
1) 25.12
2) ((4/3)*π*r^3)/2
Step-by-step explanation:
1) formula of the volume of a cylinder is: r^2 * π * h = 2/1 * π * 8 = 25.12
2) diameter = side of the square = 2r
so the radius is r
finally formula of the volume of a hemisphere: ((4/3)*π*r^3)/2
PLEASE GIVE BRAINLIEST