Question

Twelve cubes stacked in this figure part a: what is its surface area

Answer 1

36 square units

Explanation:

well the surface area is:

let's say that the surface of a cube is 1 squared units

so in the figure we have the faces:

up (blue)

down (not seen)

front (green)

back (not seen)

left (yellow)

right (not seen)

so the are of the blue is 6 and also is the down area

the area of the front is 6 and also is the back area

the area of the left is 6 and also the right area

so we have

`S_a = 6+6+6+6+6+6\\\\S_a = 6*6\\\\S_a = 36`square units