If the cube shown is 1cm on all sides, what is the length of the diagonal, x, of the cube? (rounded to the
nearest tenth).
A. 1.5cm
B. 1.7cm
C. 1.9cm
D. 2.2cm
To find the length of the diagonal, x, of the cube, we can use the Pythagorean theorem.
x = √(1^2 + 1^2 + 1^2)
x = √(1 + 1 + 1)
x = √3
x ≈ 1.7 cm
Therefore, the length of the diagonal, x, of the cube is approximately 1.7 cm, so the answer is B. 1.7cm.