The edge length of a cube is shown. what is the total suface area of this cube?
3m

Hi,

A cube has got 6 faces (having the same area), area of any face is l², where l is the lenght of any edge.

Total surface would be:

A = 6*l² = 6 * 3² m² = 54 m².

Green eyes.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: