Solving how many square inches within a flag

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wtam1100
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Hello all. I'm new here. Trying to help my daughter with her homework but I can't solve this problem wondering if there is any out there that is willing to help. Thanks a Head of time.

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  • Worksheet diagram of a rectangular flag divided by a diagonal black band into a white upper section and a yellow lower section, with labels White, Black and Yellow; width 72 in., band widths 8 1/2 in. and 7 1/2 in. marked at the right edge.
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Re: Solving how many square inches with in a flag

The white stripe is a parallelogram, whose area is found by computing the product of the base and the height. Can your daughter identify the measures of the base and height?
 
Re: Solving how many square inches with in a flag

MarkFL said:
The white stripe is a parallelogram, whose area is found by computing the product of the base and the height. Can your daughter identify the measures of the base and height?

Yeah I think you are right. I'm just going with the 72 x 8.5. thanks for you input.
 
Re: Solving how many square inches with in a flag

wtam1100 said:
Yeah I think you are right. I'm just going with the 72 x 8.5. thanks for you input.

Yes, that's correct! (Star)
 
the white area is essentially a parallelogram
to calculate the area of a parallelogram

A = base x height

A = 8.5 x 72 = 612 square inches