swiftkidd813
swiftkidd813 swiftkidd813
  • 25-01-2018
  • Mathematics
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If ps=6cm and pt=9cm what is pr

If ps6cm and pt9cm what is pr class=

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mathmate
mathmate mathmate
  • 25-01-2018
Use metric relations:
TP*PR=PS^2
TS*SR=TR*PS
TP*TR=TS^2
RP*RT=RS^2

Using the first relation,
TP*PR=PS^2
=>
9*PR=6^2
solve for PR
PR=6^2/9=36/9=4

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