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Makovka662 [10]
3 years ago
11

Quadrilateral A’ B’ C’ D’ is a dilation of quadrilateral ABCD about point P with a scale factor of 2 and a half .

Mathematics
2 answers:
salantis [7]3 years ago
8 0
It is an enlargement because the scale factor is 2 and a half
My name is Ann [436]3 years ago
7 0

Answer: enlargement

Step-by-step explanation:

A dilation  is a transformation which stretches or shrinks the original shape.

It creates similar shapes but of different size.

If the scale factor is greater than 1 then the image is an a stretch or enlarged.

If the scale factor is between 0 and 1 then the image is a reduction or a shrink.  

If the scale factor is 1 then the figure and the image are congruent.

The given scale factor is 2\frac{1}{2}

Since 2\frac{1}{2} >1 .

Therefore, the dilation is enlargement .

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Suppose the line of best fit is being found for some data points that have an r-value of 0.657. If the standard deviation of the
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Can you conclude from the figure that ABC is similar to DEF? Explain.​
pishuonlain [190]

Answer:

Yes, we can conclude that Triangle ABC is similar to triangle DEF because the measures of the 3 angles of both triangles are congruent.

Step-by-step explanation:

We have the measure of 2 angles from both triangles, and we know that triangles have 180°, so we can solve for the measure of the third angle for both triangles.

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Measure of angle A= 60°

Measure of angle C= 40°

Measure of angle B = 180°- (measure of angle A + measure of angle C) = 180° - (60° + 40°) = 80°

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Measure of angle D= 180° - (measure of angle E + measure of angle F) = 180° - (80° + 40°) = 60°

The measures of the angles in Triangle ABC are: 60°, 40°, and 80°.

The measures of the angles in Triangle DEF are: 60°, 40°, and 80°.

Since the measure of 3 angles of the two triangles are the same, we know that the two triangles are similar.

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