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bearhunter [10]
3 years ago
9

Help please :) ! The dashed triangle is the image of the pre-image solid triangle. What is the scale factor used to create the d

ilation? Enter your answer in the box.

Mathematics
2 answers:
Helga [31]3 years ago
5 0
<span>Ans : -3. Explanation : Looking at the figure and its image, three things are immediately obvious..... The image is bigger The image is inverted. The figure and the image have a common point. The common point is the centre of dilation. (â’4, â’4) The fact that it lies BETWEEN the image and the figure means that the SF is a negative number. This accounts for the fact that the image is inverted. To find the Scale Factor divide a side in the image the same side in the figure Looking at the horizontal lines we see.. a side in the image the same side in the figure =â’6/2=â’3</span>
Keith_Richards [23]3 years ago
4 0

Let

x---------> measure of the base of the triangle of the image

y---------> measure of the base of the triangle of the pre-image

sf-------> the scale factor

we know that

the scale factor is equal to

sf=\frac{x}{y}

in this problem we have

x=6\ units\\y=3\ units

<u>Find the scale factor</u>

substitute the values of x and y in the formula above

sf=\frac{6}{3}=2

therefore

<u>the answer is</u>

the scale factor is equal to 2


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