Arectangle has an area of 72 in². the length and the width of the rectangle are changed by a scale factor of 3.5. what is the area of the new rectangle? enter your answer in the box.

The area of the new rectangle is 882 in².

Step-by-step explanation:

Let l be the length and w be the width of the original rectangle,

So, the area of the original rectangle is,

A = l × w                  ( Area of a rectangle = Length × Width )

Given, A = 72 in²,

⇒ lw = 72 ------- (1),

Since, if the rectangle are changed by a scale factor of 3.5,

⇒ New length = 3.5 l,

And, new width = 3.5 w,

Thus, the area of the new rectangle = 3.5l × 3.5w

 ( From equation (1) ),

= 882 in²

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step-by-step explanation: