Posted by Anonymous on .
sam must paint his bedroom ceiling. the diagram below represents his bedroom ceiling and includes a circular light fixture with a diameter of 2 feet. a gallon of paint covers 16 square feet and costs $8.95. how much will sam have to spend on paint to cover the entire ceiling except for the light fixture? assume he cannot buy a fraction of a gallon of paint.

geometry 
Ms. Sue,
Don't you realize that we can't see the diagram and you haven't given the dimensions?

geometry 
Anonymous,
the length is 12 and the width is 9

geometry 
Ms. Sue,
12 by 9 = 108 square feet
Area of light fixture:
A = pi * r^2
A = 3.14 * 1^2
A = 3.14 sq. ft.
108  3.14 = 104.86 sq. ft.
104.86/16 = 6.55 gallons
7 * 8.95 = ? 
geometry 
Anonymous,
where do you get 7 from?

geometry 
Anonymous,
wait ... is the 7 from 6.55?
so would the answer for 7 * 8.95 be
$62.65 ??? 
geometry 
Peter,
Funny, the REA's testware has this same question, ceiling dimensions 12/9 which is
108  the light fixture diameter 2 = area 3.14=104.86 sq ft, agreed. divided by 16 sq ft per gallon = rounded 7 gallons
their answer choices:
$44.75 $50.20 $38.50 $42.99
am i crazy or is it NONE of these !!!