SOLUTION: Suppose that a cube of with edge 3 inches was lengthen of 4 inches .By how much did the total surface area increased?

Question 1085972: Suppose that a cube of with edge 3 inches was lengthen of 4 inches .By how much did the total surface area increased?
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
A cube has 6 sides. The area of each side is s^2
Your cube has a side (edge, same thing) of 3 and 3^2 = 9 Multiply 9*6 to find the total surface of the cube.
-----------------------------
The new cube has a side of ? I don't understand "lengthen of 4 inches" Do you mean a length of 4 inches or lengthened by 4 inches (this would be 3+4 = 7)
It doesn't matter, though, because I told you above what you have to do: Take the length of the edge (side) and square it. Multiply the result times 6 to get the total area of this cube, then subtract the total for the first cube to find out how much the total surface increased.
RELATED QUESTIONS
What is the length of the edge of a cube that has a total surface area of 288... (answered by stanbon)

What is the surface area of a cube that has an edge measuring 5... (answered by edjones,dabanfield,richwmiller)

WHAT IS THE SURFACE AREA OF A CUBE THAT IS 3 INCHES HIGH, 2 INCHES WIDE, AND 4 INCHES... (answered by checkley71)

What is the surface area of a cube that is 3 inches high,2 inches wide,and 4 inches... (answered by edjones)

how do you find lateral area and surface area of a cube with edge length of 20 inches? (answered by Alan3354)

determine the length of one edge of a cube that has a surface area of 864 square... (answered by jsmallt9)

the surface area of a cube is 54 square inches. find the length of each... (answered by solver91311)

What is the surface area of a cube if it has an edge of 6 inches? (answered by stanbon)

what is the lateral and surface areas of a cube with edge length of 15... (answered by solver91311)