SOLUTION: Hi a room is in the shape of a rectangular prism. It has 2 windows and a door that have a combined area of 5.52sqm. What is the area of the internal walls that need to be painted.

Question 1088501: Hi
a room is in the shape of a rectangular prism. It has 2 windows and a door that have a combined area of 5.52sqm. What is the area of the internal walls that need to be painted.
The prism is 4.52m long 2.41m wide and 2.96m high.
my answer is 35.5056sq m
textbook says 30.53msq
thanks
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

a room is in the shape of a rectangular prism.

given: , and
It has 2 windows and a door that have a combined area of .
so, two walls have dimensions: , the other two ,
then, the area to be painted is:
..........now we need to deduct given area of 2 windows and a door
plug in given values

your answer is same
if textbook says , that must be typo

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