seriously need help on these two:(


1. cylinder a has a radius of 1 m and height of 4m cylinder b has a radius of 1 m and height of 8m what is the ratio of the volume of cylinder A to the volume of cylinder b
a. 1:2
b. 2:1
c. 1:1
d. 1:4
2. What is the surface area of a conical grain storage tank that has a height of 42 meters and a diameter of 20 meters? round your answer to the nearest square meter.
a. 3,028m^2
b.3971m^2
c.1,357m^2
d. 1,671m^2