OG q39, page 280

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OG q39, page 280

by nhai2003 » Mon Jul 13, 2009 6:48 pm
1. A circular tub has a band painted around its circumference, as shown below. What is the surface area of this painted band? x height)

(1) x = 0.5

(2) The tub is 1 meter high.

Guys please help me with this one
Thanks
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Re: OG q39, page 280

by batman73 » Mon Jul 13, 2009 8:30 pm
nhai2003 wrote:1. A circular tub has a band painted around its circumference, as shown below. What is the surface area of this painted band? x height)

(1) x = 0.5

(2) The tub is 1 meter high.

Guys please help me with this one
Thanks

The tube has the surface area of SA= 3.14(r)^2 + 2(3.14)rh.

In order to solve this problem, you will need to know the height and radius or diameter of the tub.

1) x=0.5, it gives you the height but you still need the diameter or the radius. INSUFFICIENT

2) The Tub is 1m high but still does not provide you with the radius of the tub. INSUFFICIENT.

COMBINE: You have the height but still do not have the radius or diameter.

THE ANSWER IS E: Not enough information.