Hi, I don t need this really fast, but I really don t understand how to do surface

The surface area is the area that describes the material that will be used to cover a geometric solid. When we determine the surface areas of a geometric solid we take the sum of the area for each geometric form within the solid.

The volume of a pyramid

V=1/3⋅B⋅h

The area of the rectangle:

A=C⋅h

A=12.6⋅6

A≈75.6

To find the volume of a cylinder we multiply the base area (which is a circle) and the height h.

V=πr2⋅h

Step-by-step explanation:the mean is 16.75 why because 2+4+6+8+10+12 is 42 divide that by 6 and you get 16.75