Geometry Special Right Triangles: What is the answer for, h times the square root of 3 equals 4. Also am I doing this right?

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

he is going to fill two shelves and the third shelf will only have five video games