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The total surface area of a cone of base radius and slant height 2l is ______.
Mathematics
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Question
Updated
19 Aug 2026
The total surface area of a cone of base radius and slant height 2l is ______.
A
Choose Your Answer
A
2\(\pi\)r (l + r)
B
\(\pi\)r(l + r/2)
C
\(\pi\)r(l + r/4)
D
\(\pi\)r(l + r)
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