posted by .

a cube with 2 in sides is placed on a cube with 3 in sides. then a cube with 1 in sides is placed on the 2 in cube. what is the surface area of the three cube tower?

  • math -

    5 sides of the top cube is exposed.

    so we get 1*1 * 5 = 5 in ^2

    the second cube has 4 sides exposed also, so 2^2 * 4 = 16 in ^2, but also it has one side with the cube on top, so we have 4-1 = 3 on that side, so the overall is 19 in ^2

    Then we have for the third cube 5 sides exposed, so we have 3^2 * 5 = 45. We also have the area of the 2in cube on it, so we get 3^2 - 2^2 = 9-4 =5.

    So the overall is 45+5+19+5 = 55+19 =74 if i am not mistaken...

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. 5th grade

    Carla formed this large cube from eight small cubes. She put the large cube on a worktable and then spray painted all the sides that she should without moving any part of the large cube. If she take the large cube apart, how many of …
  2. geometry

    a cube is placed inside a right circular cylinder. How may cubic feet of water will file the cylinder that has the cube in it?
  3. math

    a cube with 2-inch sides is placed on a cube with 3-inch sides. Then a cube with 1-inch sides is placed on the 2-inch cube. What is the surface area of the three cubes?
  4. Shadow

    Write an equation to solve each problem. The sides of one cube are twice as long as the sides of a second cube. What is the side length of each cube if the total volume of the cubes is 72 cm^3?
  5. physics

    A wooden cube with a specific gravity of 0.90 and side length 0.120 m is placed into a bucket of water and floats upright with its sides in a horizontal or vertical orientation. What is the mass of the cube, what is the buoyancy force …
  6. Physics

    small cube of copper (density = 8930 kg/m3) is used to support a large cube of marble (density = 2560 kg/m3). The copper cube has sides of length 2.00 cm and is carefully placed on a flat, level table under the center of the cube of …
  7. science

    a cube has sides that are 3.0cm long. The mass of the cube is 54g. Calculate the density of the cube.
  8. math

    Shane takes a big cube of butter with sides of length 5 from the refrigerator. He then cuts out a little cube with sides of length 2 from one of the corners of the cube. Write a numerical expression with exponents that describes the …
  9. math

    The formula form the surface area of a cube is SA=6s^2 where s represents the length of a side of the cube. What is the surface area of a cube with the sides 4.5 centimeters long?
  10. math

    Find the sum of 8x cube y +2xy cube -18and -12x cube y +7xy cube and subtract it from the sum of 19x cube y -17xy cube +12and -21+5xy cube .?

More Similar Questions