anonymous
  • anonymous
Amanda took the measurements of the line segments and wrote them down as shown Segment PT is 2.8 cm, segment TR is 2.5 cm, segment QT is 1.6 cm, and segment TS is 3.5 cm. Describe the method you use to prove that Amanda took incorrect measurements. Use geometric theorems to write a two-column proof
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
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anonymous
  • anonymous
@jim_thompson5910 @Hero
anonymous
  • anonymous
Can you help?

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jim_thompson5910
  • jim_thompson5910
Hint: look at this page http://www.mathopenref.com/chordsintersecting.html
anonymous
  • anonymous
I'm still not understanding it
jim_thompson5910
  • jim_thompson5910
here's a circle |dw:1370378614360:dw|
jim_thompson5910
  • jim_thompson5910
here are 2 chords that intersect in the circle |dw:1370378626588:dw|
anonymous
  • anonymous
Okay I got that
jim_thompson5910
  • jim_thompson5910
the theorem says that if we label the pieces of the chords like this |dw:1370378663232:dw| then we can say x*y = p*q
jim_thompson5910
  • jim_thompson5910
what this means in your case (and this problem) is that PT * TR = QT * TS
anonymous
  • anonymous
Why is it x*y and p*q
jim_thompson5910
  • jim_thompson5910
basically the pieces of the chord multiply to the same value
jim_thompson5910
  • jim_thompson5910
that's what the intersecting chord theorem says
anonymous
  • anonymous
Oh okay
jim_thompson5910
  • jim_thompson5910
here is a page that has some examples http://www.mathwarehouse.com/geometry/circle/product-segments-chords.php
anonymous
  • anonymous
Thanks

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