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What is the length of of BC? with work pls help
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What is the length of of BC? with work pls help

What is the length of of BC? with work pls help-example-1
User Marschro
by
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1 Answer

3 votes

Answer:

31

Explanation:

Assuming the drawing is to scale

  1. The triangle is equilateral according to measure, So the measure of angles A, B and C are the same and the lengths of sides AB, BC and BA are equal
  2. There is very little information to go off, so the measurements are done with a ruler etc.
  3. With that in mind, this means AC=BC, ergo
    6x-5=4x+7
  4. So,
    6x-4x=7+5 then
    x=6
  5. Plugging that back into BC, we have
    4(6)+7=24+7=31
User Think
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