276.46 is the surface area of the cylinder
V = 12 × 2 × 3 = 72 cm3
Hope this helps!
A point is a geometry figure named with lowercase letters (I'm pretty sure)
First, you must find the side length. It is a hexagon so there are 6 sides. You take the perimeter by 6 48/6 and get 8. Then plug it into formula (3 sqrt 3)/2 a^2 where a is side length. Plug into formula and get an answer of 166.28 in^2