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 dilat
ed 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
2 answers:
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.
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 and the length is
3. Therefore, the new dimensions are:
The answer is the option C: C) by
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