Cube edges

The sum of the lengths of the cube edges is 42 cm. Calculate the surface of the cube.

Correct result:

S =  73.5 cm2

Solution:

s=42 cm n=3⋅ 4=12 a=s/n=42/12=72=3.5 cm  S=6⋅ a2=6⋅ 3.52=1472=1472 cm2=73.5 cm2

Try another example


We would be very happy if you find an error in the example, spelling mistakes, or inaccuracies, and please send it to us. We thank you!






Showing 0 comments:
avatar




You need to know the following knowledge to solve this word math problem:

Next similar math problems:

  • Cube 2
    krychle_1 How many times will increase if the surface area of the cube if we triple length of its edge?
  • Cube edge
    cubes_9 Determine the edges of the cube when the surface is equal to 37.5 cm square.
  • Surface area of a cube
    cube_shield What is the surface area of a cube that has an edge of 3.5?
  • Sum of the edges
    cube_shield The sum of the lengths of all edges of the cube is 72 cm. How many cm2 of colored paper are we going to use for sticking?
  • Net of a cube
    cube_shield This net can be folded to form a cube with a side length of 20 units. What is the surface area of the cube in square units?
  • Cube
    cube_diagonals_3 The sum of all cube edges is 30cm. Find the surface area of the cube.
  • The cube - simple
    kvader_1 Calculate the surface of the cube measuring 15 centimeters.
  • Cube surface area
    cube_5 Wall of cube has content area 99 cm square. What is the surface of the cube?
  • Edge c
    kvadr_diagonal Find the edge c of cuboid if an edge a = 20 mm, b = 30 mm and surface area S = 8000 mm2.
  • Simplify
    numbers3_1 Simplify the following problem and express as a decimal: 5.68-[5-(2.69+5.65-3.89) /0.5]
  • Expression
    expr_2 Solve for a specified variable: P=a+4b+3c, for a
  • Hotel
    hotel The hotel has a p floors each floor has i rooms from which the third are single and the others are double. Represents the number of beds in hotel.
  • Two machines
    machine_2 Performances of two machines are in a ratio of 7:12. A machine with less power produced 406 pieces of products per shift. a) How many pieces produced per shift second machine? b) How many pieces produced two machines together for five shifts?
  • Unknown number 11
    numbers_33 That number increased by three equals three times itself?
  • Simple equation
    eq_1 Solve the following simple equation: 2. (4x + 3) = 2-5. (1-x)
  • The diagram
    cone_8 The diagram is a cone of radius 8cm and height 10cm. The diameter of the base is. ..
  • Passenger boat
    boy_4 Two-fifths of the passengers in the passenger boat were boys. 1/3 of them were girls and the rest were adult. If there were 60 passengers in the boat, how many more boys than adult were there?