Answer: 12√2 cm
Step-by-step explanation:
Cube 1: V = 6³ = 216
Cube 2: V = 8³ = 512
Cube 3: V = 10³ = 1000
New Cube: V = 1728
1728 = s³
12 = s
So, each side of the new cube is 12 cm.
Use Pythagorean Theorem to find the length of the diagonal:
12² + 12² = diagonal²
144 + 144 = diagonal²
288 = diagonal²
√288 = diagonal
12√2 = diagonal