A metallic cube of edge 1 cm is drawn into a wire of diameter 4 mm, then the length of the wire is:
A. 8:9
B. 9:8
C. 5:7
D. 7:5
Answer:C
A metallic cube of edge 1 cm is drawn into a wire of diameter 4 mm, then the length of the wire is:
A. 8:9 B. 9:8 C. 5:7 D. 7:5