A cube is a three-dimensional figure as shown in fig. It has six faces and all of them are identical squares. The length of an edge of the cube is given by $l$ . Find the formula from the total length of the edges of a cube.

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Solution

Lets write the name of the vertices of the given cube,

Since, a cube has $12$ equal edges.
[ $A B, B C, C D, D A, C E, E F, D F, E H, G H, G F, B H, A G$ ]
It is given that,
Length of all each edge $= l$
Total length of all edges of cube $= 12 \times l = 12 l$

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A cube is a three-dimensional figure as shown in the given figure. It has six faces and all of them are identical squares. The length of an edge of the cube is given by l. Find the formula for the total length of the edges of a cube.

Question 3

A cube is a three-dimensional figure. It has six faces and all of them are identical squares. The length of an edge of the cube is given by $l$ . Find the formula for the total length of the edges of a cube.

Q. The length of an edge of a cube is

l

. Find the formula for the sum of lengths of all the edges of the cube.

Q. Fill in the blanks.

(1) Each face of a cube is ........ .
(2) A cuboid has ........ edges.
(3) A cube has .......... faces.
(4) A cuboid has ........ vertices.
(5) The standard units of volume are ......... and ........ .
(6) All the edges of a cube are of ........ length.

Q. Cube

A

has an edge length of

2

inches. Find the volume of cube

B

, whose edge length is double the edge length of Cube

A

, in cubic inches.

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A cube is a three-dimensional figure as shown in fig. It has six faces and all of them are identical squares. The length of an edge of the cube is given by l. Find the formula from the total length of the edges of a cube.

Lets write the name of the vertices of the given cube,Since, a cube has 12 equal edges. [AB, BC, CD, DA, CE, EF, DF, EH, GH, GF, BH, AG]It is given that,Length of all each edge =lTotal length of all edges of cube=12×l=12l

A cube is a three-dimensional figure as shown in fig. It has six faces and all of them are identical squares. The length of an edge of the cube is given by $l$ . Find the formula from the total length of the edges of a cube.

Lets write the name of the vertices of the given cube,

Since, a cube has $12$ equal edges.
[ $A B, B C, C D, D A, C E, E F, D F, E H, G H, G F, B H, A G$ ]
It is given that,
Length of all each edge $= l$
Total length of all edges of cube $= 12 \times l = 12 l$