Question: the edges of three metal cubes are 2 cm , 3 cm , and 4 cm respectively . a new cube is made by melting these three cubes together . what is the edge of the new cube ( in centimeters ) ?
A) 4
B) 4.2
C) 4.4
D) 4.6
E) 4.8
Correct answer: d
Grade: 6 | Topic: Geometry | Difficulty: Hard | Standard: 6.G.A.2