Question

A rectangle has a width of 5 inches and a length of 9 inches. What will be the new dimensions of the rectangle after it is dilated by a scale factor of 3?

A) 8 inches by 12 inches

B) 15 inches by 9 inches

C) 15 inches by 27 inches

D)45 inches by 81 inches

Answer 1

The correct answer is:

C. 15 inches by 27 inches.

The new dimensions of the rectangle after it is dilated by a scale factor of 3 will be 15 inches by 27 inches.

`|Huntrw6|`

Answer 2

To solve this problem you must apply the proccedure shown below:

1. When a rectangle is dilated by a scale of factor, you must multiply the original dimensions by this scale of factor to obtain the new dimensions.

2. The original dimensions are: The width is
`5inches` and the length is
`9 inches`

3. Therefore, the new dimensions are:

`Width=3(5inches)=15inches\\ Lenght=3(9inches)=27inches`

The answer is the option C: C)
`15inches` by
`27 inches`