A sphere is made by reshaping a solid right circular cone of height 14 cm and diameter 10 cm.
Find the radius of the sphere thus formed.
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Answer:
330
Step-by-step explanation:
The middle term is the 6th term of the sequence.
6th term = a+5d,
where a =first term and d= common difference...
Therefore,
a+5d=30 ...1
Sum for the eleven term is given by
S11=11/2[2a+10d] ...2
Multiply 1 and 2, we get
2a+10d=60 ...3
Substitute 3 and 2, we get
S11=11/2[60]
S11=330 (ans)
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