anonymous
  • anonymous
Keaton wtote the following paragraph to proof for the Vertical Angles Theorem: The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees ___________. The sum of angle 1 and angle 4 is equal to the sum of angle 3 and 4 by transitive property of equality. Ane 1 is equal to angle 3 by the subtraction property of equality. Which phrase completes the proof? A. By construction using a straightedge B. By the definition of a perpendicular bisector C. By the definition of supplementary angles D. By the vertical angles theorem
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@mathmath333 @ganeshie8 @campbell_st @Hero @amilapsn
amilapsn
  • amilapsn
|dw:1440101135247:dw|
amilapsn
  • amilapsn
|dw:1440101276375:dw|

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amilapsn
  • amilapsn
I think those would help you.
anonymous
  • anonymous
Thanks! My answer is C, is that right?
amilapsn
  • amilapsn
Yep. But what's perpendicular bisector?
anonymous
  • anonymous
A line segment thats perpendicular to a side of a triangle
amilapsn
  • amilapsn
hmm... let's ask google..:)
anonymous
  • anonymous
Thats where i got it from lol
amilapsn
  • amilapsn
wait google doesn't always says the truth... Google's interpretation is wrong for perpendicular bisector. Do you want to know why?
anonymous
  • anonymous
Yes please, explain it to me
amilapsn
  • amilapsn
because perpendicular bisectors shouldn't always be in triangles... they can be anywhere... actually anywhere there's a straight line.
amilapsn
  • amilapsn
|dw:1440101941620:dw|
amilapsn
  • amilapsn
The blue line's perpendicular bisector is the pink line. The pink line becomes the perpendicular bisector for the pink line is for two reasons. 1. The angle between the blue one and pink one should be \(\sf\color{red}{90^o}\) 2. The pink line should divide the blue line into \(\sf\color{red}{equal}\) two parts.
anonymous
  • anonymous
Makes sense now, thank you so much! Do you think you could help me with another one?

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