SOLUTION: The area of a sector of a circle with diameter 12cm is 66cm square.if the sector is folded to form a cone calculate the radius of the base of the cone take pie as 22over 7
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Question 1084178: The area of a sector of a circle with diameter 12cm is 66cm square.if the sector is folded to form a cone calculate the radius of the base of the cone take pie as 22over 7
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
Radius of the sector is .
Whole circle from the given sector would have area .
Portion of the circumference which makes the arc on the sector,
-
Length of the arc of the sector is
---------This is the circumference of the cone formed from the sector when folded.
Radius of the cone:
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