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A science fair poster is a rectangle 3 ft long and 2 ftwide. Some of the entry rules for the fair refer to thearea of the poster in square inches. Use the facts tofind its area in square inches.2111XConversion facts for length1 foot (ft)12 inches (in)1 yard (yd)3 feet (ft)1 yard (yd) = 36 inches (in)= i need help with this problem.

User Mwiza
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1 Answer

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We have the following information from the question:

• We have a science fair poster that is a rectangle, 3 feet in length, and 2 feet in width.

And we need to find the area of that rectangular poster in square inches.

To find the area in square inches, we can proceed as follows:

1. We can convert the given length and width to inches:


1\text{ foot=12inches}

Then we have:


3ft\rightarrow3ft*(12inches)/(1ft)=36inches

And also:


2ft\rightarrow2ft*(12inches)/(1ft)=24inches

2. Now, since the area of a rectangle can be found as the length times the width, then we have:


\begin{gathered} A_{\text{ poster in inches}}=l*w=36in*24in=864in^2 \\ \\ A_{\text{ poster in inches}}=864in^2 \end{gathered}

Therefore, in summary, the area of the science fair poster is, in square inches, equal to 864 square inches.

User Maniganda Prakash
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