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Haley has enlarged a 3-inch by 5-inch picture so that both the length and width are tripled. The area of the enlarged photo is how many times the area of the original photo?

 Apr 12, 2021
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The  area is  enlarged  by    3^2   =   9  times

 

To see this....let  the  original area = L * W

 

Then  the  new area  =  (3L) * (3W)   =  9 (L*W)  =  9 times  the original area

 

cool cool cool

 Apr 12, 2021
edited by CPhill  Apr 12, 2021

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