How to find the edge of a cube if you know the diagonal of 6 cm?

univerkov | May 5, 2021 | education

In order to find what the edge of a cube is equal to while its diagonal is known, one should use the formula.
d = a √3, where d is the diagonal of the cube and a is its edge.
Since, according to the condition of the problem, it is necessary to calculate the length of the edge of the cube, using the above formula, we express what is equal to a.
a = (d √3): 3.
Now we substitute the numerical value d specified in the condition and calculate.
a = (6 √3): 3.
a = 2 √3 (cm).
Answer: 2 √3 cm.

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