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The principal diagonal.

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Q: What is the name of the longest diagonal of the cube?
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What is the longest diagonal in a 6cm cube?

The longest diagonal of a 6 cm cube is: 10.39 cm


How do you find the edge of a cube if the measure of the diagonal is given?

The longest diagonal in a cube is equal to the length of the edge, multiplied by the square root of 3.


What is the surface area of cube whose longest diagonal is 6cm?

It is 72 sq cm.


Is the cube diagonal and plane diagonal of a cube the same?

No.


How can I figure the dimensions of a perfect cube if the hypotenuse through the center of the cube is 35cm?

Somehow I messed up andused 31 instead of 35 That is why you are receiving an improvement Do a Google search for Diagonal of a cube Find this website. mathcentral.uregina.ca/QQ/database/QQ.09.04/brett1.HTML - Draw a cube You will see how to find the diagonal of a cube. You use Pythagorean Theorem Draw a cube Label each side as s Draw the diagonal of the base of the cube Diagonal of base = (s^2 + s^2 )^0.5 Let the diagonal of the base be the horizontal side of the right triangle whose hypotenuse is the diagonal of the cube. The height of the cube is the vertical side of the right triangle whose hypotenuse is the diagonal of the cube. Now determine the length of the diagonal of the cube. (diagonal of base)^2 + (height of cube)^2 = (diagonal of cube )^2 Diagonal of base = (s^2 + s^2 )^0.5….Height of cube = s Use Pythagorean Theorem (diagonal of cube )^2 = (diagonal of base)^2 + (height of cube)^2 (diagonal of base)^2 = [(s^2 + s^2 )^0.5]^2 = s^2 + s^2 height of cube)^2 = s^2 (diagonal of cube)^2 = (s^2 + s^2 + s^2) (diagonal of cube )^2 = (3 * s^2) diagonal of cube = (3 * s^2)^0.5 = 35 (3 * s^2)^0.5 = 35 Square both sides 3s^2 = 31^2 = 1225 s^2 = 408.33 s = 40833^0.5 s = 20.2 cm


What is the length in inches of a diagonal of a 20 foot cube?

12 inches = 1 foot. 240 inches = 20 feet. Use Pythagoras' theorem to find the diagonal of one of the faces of the cube. 2402+2402 = 115200. The square root of 115200 is 339.411255 Therefore the diagonal of the cube is 339.411255 inches or 339 inches correct to three significant figures Incidentally, by using the above answer and Pythagoras' theorem we can also work out the length of the longest internal diagonal within the cube which works out exactly as 340 inches.


If a diagonal of a cube is known how to find the volume of the cube?

If the diagonal is d thenV = [d/sqrt(3)]^3


What is the length of the longest diagonal in a 6 cm cube?

sqrt(62 + 62 + 62 ) = sqrt(36*3) = sqrt(108) = 10.39 cm


Whats the edge length of a cube with a diagonal of 9ft?

The edge length of a cube with a diagonal of 9 ft is: 5.196 feet.


A box is made in the shape of cube its dimension are of length 8cm what is the lenght oof longest pencil that would fit inside the box?

Use Pythagoras' theorem to find the length of the outer diagonal and then use this as the base for the inner diagonal (the longest length of the cube) 82+82 = 128 and the square root of this is 11.3137085 cm 11.31370852+82 = 192 and the square root of this is 13.85640646 cm The longest pencil is 13.85640646 or just under 14 cm


Surface area of cube is 150 sq cmwhat is the length of its diagonal?

The diagonal will be 8.66 cm


What is the shape of the cross section of a cube if the cut is made across the diagonal of the cube?

Rectangle