Hi all, i need a help on a few questions if any would spare a few minutes.

Calculate the surface area of;
1. an open top cylinder 84mm diameter by 150mm long.

Calculate Volume of;

An ingot 80x10x300mm long is cast into a a cycinder 120mm diameter. Calculate its length and total surface area.

Thank you for your Time.

N3_olp

1. Circumference = 84pi

Base = pi(42^2) = 1764pi mm^2

Outside = 84pi * 150 = 12600pi mm^2

12600pi + 1764pi = 14364pi mm^2 = Surface area