Question

Find the diagonal of a cube whose side is 12 metre​

Answer 1

Answer:

20.78m...............

Answer 2

Answer:

$12 \sqrt{3}$

m

Step-by-step explanation:

Diagonal of a cube=

$\sqrt{ {x}^{2} + {x}^{2} + {x}^{2} }$

=

$\sqrt{3 {x}^{2} }$

=

$\sqrt{3} x$

=

$\sqrt{3} \times 12$

=

$12 \sqrt{3}$

m (m= metre)

Remember that x here is the side of the cube.

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