anonymous
  • anonymous
Which measurement is a possible side length for a triangle with two sides measuring 9cm and 4cm? A) 5cm B) 6cm C) 3cm D)4cm Can someone explain how exactly to do this?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Use the Pythagorean equation.
anonymous
  • anonymous
A^2 + B^2 = C^2
anonymous
  • anonymous
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anonymous
  • anonymous
there is a rule for triangles...the sum of two sides must be greater than the third side A) 5...suppose i take 5 and 4 as two sides...this must be greater than 9..but it's not..therefore it's not 5 let's look at D) 4 4+4 is not greater than 9 either so that's not it continue with this logic...do you know the answer?
anonymous
  • anonymous
So it would be 6 ... Because 6+4=10 and 10 is greater than 9
anonymous
  • anonymous
you got it!
anonymous
  • anonymous
6 + 9 is also greater than 4 which further supports your answer
anonymous
  • anonymous
Awesome thanks :)

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