Question

The side of a cube is 9 cm, what will be the diagonal of the cube in cm​

Answer 1

Answer:

$diagona l \: of \: cube = \sqrt{3} a \\ \\ = \sqrt{3} \times 9 \\ \\ = 9 \sqrt{3} \: cm$

Answer 2

Answer:

Diagonal of cube is 15.59 cm

Step-by-step explanation:

Diagonal of cube = √3 x edge

                            = √3 x 9

                            =  1.73 x 9

                            = 15.59 cm