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# A circular tub has a band painted around the circumference.

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Eternal Intern
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A circular tub has a band painted around the circumference. [#permalink]

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03 Aug 2003, 16:16
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A circular tub has a band painted around the circumference. What is the surface area of this painted band?

( 1) x = 0.5
( 2) The height of the tub is 1 meter

How can surface area of a band be the product of the circumference of the band and the width of the band?

Perimeter * Width = Area , what planet am I on?

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Last edited by Curly05 on 06 Aug 2003, 11:05, edited 1 time in total.
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04 Aug 2003, 06:12
The formula for surface area in this case would be equal to that for a cylinder. Discounting the base of the tub: consider it to be cylindrical.

If you cut the cylinder vertically, and open it, it would resemble a rectangle.

Area of rectangle = Length * Breadth

In this case Length = circumference;

Breadth = 1 m

Hence the surface area of the Band = Circumference * Height
Eternal Intern
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04 Aug 2003, 07:32
Your explanation isn't quite correct.

Length does not equal circumference.

Refine it, the answer is E.
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Hi   [#permalink] 04 Aug 2003, 07:32
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# A circular tub has a band painted around the circumference.

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