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1. |
A hollow cylinder with outer radius 4 cm and height 2 cm is made up of 1 cm thick metal sheet. What is the volume of metal used? (Take π = \(\frac{22}{7}\)) |
A. | 40 cm3 |
B. | 56 cm3 |
C. | 44 cm3 |
D. | 65 cm3 |
Answer» D. 65 cm3 | |