What is a surface area?

Surface area is the total area of the surface of a three-dimensional object.

Step-by-step explanation:

For example,

Like a cubes surface area is the area of all the faces added together

The surface area is the sum of the area of all faces of the 3D shape.

For Example.

If the length of a cube is 6cm. To work out the surface area you would first have to find the area. You can do this by multiplying 6 by 6, which gives you 36. You would then multiply 36 by 6, which gives you 216. This is because the cube has 6 faces.

1) Find the area of one face.

2) Multiply by the number of faces.

i'm sure goog can you get that answer

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.