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ZanzabumX [31]
3 years ago
7

Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P′Q′R′ has v

ertices P′(1, −2), Q′(0, 3), and R′(−1, 0).
Plot triangles PQR and P′Q′R′ on your own coordinate grid.

Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P′Q′R′? Explain your answer. (4 points)

Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points)

Part C: Are the two triangles PQR and P′'Q′'R′' congruent? Explain your answer. (2 points)
Mathematics
2 answers:
Julli [10]3 years ago
5 0

Answer:

Part A: I think only think that the scale factor of dilation is 1/7. The original triangle is reflected by the x-axis by 14 units. The triangle P'Q'R' is a total of 2 blocks up.

Part B: I really do not know this I am very sorry. :_(

Part C: No they are not congruent, the triangle PQR is bigger. In order for a shape to be congruent it must be the same size and have the same vertices.

Step-by-step explanation:

MakcuM [25]3 years ago
4 0

Answer:

Hi myself Shrushtee.

Step-by-step explanation:

P' = 1/3 P

reflection in the y-axis just changes the sign of all the x-values.

Since P" ≅ P', and P' is smaller than P, P" cannot be ≅ to P

It is, however, similar to P.

please mark me as brainleist

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A blueprint for a house has a scale factor = 10. A wall in the blueprint is 8 in. What is the length of the actual wall?
oksian1 [2.3K]

Answer: 6.67 feet (check to see if you made a typo)

Step-by-step explanation:

if the scale factor is ten than we multiply 8 by 10

8 * 10 = 80

important to remember this is 80 INCHES not 80 FEET

to convert 80 inches into feet, we divide by 12 because there are 12 inches in a foot

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check to make sure that the first option is actually 6.67 inches because it would make more sense for it to be in feet

7 0
3 years ago
(x+15)<br> (3x-35)<br> If the angles are congruent, what is x?
Arada [10]

Answer: x = 25

Step-by-step explanation:

If these angles are congruent, that means they are equal. Using that information, we can frame the following equation:

(x+15) = (3x-35)

To find 'x', we just need to solve the above equation.

(x+15) = (3x-35)

x+15 = 3x-35

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Therefore, 'x' is 25 degrees.

7 0
3 years ago
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solmaris [256]

Answer:

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Step-by-step explanation:

<em>Hope this helped!! :)</em>

6 0
2 years ago
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