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Anna [14]
3 years ago
10

The dashed triangle is the image of the solid triangle. The center of dilation is (−5, 7) .

Mathematics
2 answers:
Zinaida [17]3 years ago
6 0

Answer:

Just took the test and the answer is -0.25

Hope this helps future people :-)

adell [148]3 years ago
3 0
Before dilation:
the height of the triangle is h₁ = 7 - (-1) = 8
the width of the triangle is w₁ = 7 - (-5) = 12

After dilation:
the height of the is h₂ = 9-7 = 2
the width of the triangle is w₂ = -5 - (-8) = 3

The scale factor is h₂/h₁ = 2/8 = 1/4 = 0.25
Also, the scale factor is w₂/w₁ = 3/12 = 1/4 = 0.25

Answer: The scale factor is 0.25

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