13. the area of a rectangle is 991 cm². if 991
is a prime number, what are the whole
number dimensions of the rectangle?
explain your reasoning.

see the explanation

Step-by-step explanation:

Let

L ---> the length of rectangle in cm

W ---> the width of rectangle in cm

The area of rectangle is

so

---> equation A

we know that

Prime numbers only have factors of 1 and themselves.

So a rectangle with an area of 991 cm² can only be either

 or  

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