Use the image to answer the question.
An illustration shows two rectangles. The first is horizontally positioned lengthwise and the second is positioned slanting lengthwise to the left. The first rectangle has a base length of 5 inches and vertical width of 3 inches. The tilted second rectangle has a length of 9 inches and a width of 5.4 inches.
What scale factor was used to enlarge the rectangle in the image? The measurements refer to inches. Give your answer as a decimal.
(1 point)
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The scale factor can be found by comparing the corresponding side lengths of the two rectangles.
For the first rectangle, the base length is 5 inches and the vertical width is 3 inches.
For the second rectangle, the length is 9 inches and the width is 5.4 inches.
To find the scale factor for the length, divide the length of the second rectangle by the length of the first rectangle:
Scale factor for the length = 9 inches / 5 inches = 1.8
To find the scale factor for the width, divide the width of the second rectangle by the width of the first rectangle:
Scale factor for the width = 5.4 inches / 3 inches = 1.8
Since both the length and width have the same scale factor of 1.8, we can conclude that the rectangle was enlarged by a scale factor of 1.8.