haley545 haley545
  • 27-04-2017
  • Mathematics
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PLS HELP ME WITH 12 and the bottom one ASAP!! (SHOW WORK FOR BOTH!!) + LOTS OF POINTS!!!

PLS HELP ME WITH 12 and the bottom one ASAP SHOW WORK FOR BOTH LOTS OF POINTS class=

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doofusRick
doofusRick doofusRick
  • 27-04-2017
well, since its isoceles triangle so two equal sides. its either 3 or 7. There is a theorem that states two sides added must be greater than the third. so if the third side is 3. it would be 3+3=6, less than 7, incorrect. therefore the correct side is 7. so the sides are 3, 7, 7. you can add them to confirm the theorem.
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