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OpenStudy (anonymous):
A square picture with a side length of 4 inches needs to be enlarged. The final area needs to be 81 square inches.
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OpenStudy (anonymous):
okay so do you know the formula for area :)
OpenStudy (anonymous):
|dw:1431826147360:dw| so we have here the formula.. a=side^2 you can substitute 81 for a and then find the square root. You will then get the measurement of one side
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