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1. |
Q: What is total surface area of a cone where, r’ is radius and ‘l’ is slant height? |
A. | πr (l + r) |
B. | 2Ï€r (l+r) |
C. | πrl |
D. | $$ 2Ï€rl^2$$ |
Answer» B. 2πr (l+r) | |