To prove that ΔDEF ≅ ΔDGF by SSS, what additional information is needed?

Mathematics

2 answers:

andre [41]3 years ago

8 0

Answer:

person at the top is correct it is C edge 2021

Step-by-step explanation:

FinnZ [79.3K]3 years ago

3 0

Answer:

DE ≅ DG

Step-by-step explanation:

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Equation
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$y - 9 = - \dfrac{1}{2} (x + 2)$

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Rearrange the equation
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$y - 9 = - \dfrac{1}{2} (x + 2) \\ \\
 y - 9 = - \dfrac{1}{2}x - 1 \\ \\
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slope of the perpendicular line
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slope = 2

(*the slope of the perpendicular line is the <span>negative reciprocal of the slope of line)</span>

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Substitute slope into equation y = mx + c
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y = 2x + c

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Find y-intercept
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y = 2x + c
At point (0, 4)
4 = 2(0) + c
c = 4

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Substitute y-intercept into the equation y = 2x + c
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y = 2x + 4

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Answer: y = 2x + 4
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