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  • 04-08-2018
  • Mathematics
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What is the length of AC¯¯¯¯¯ ?





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What is the length of AC Enter your answer in the box class=

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mbh292
mbh292 mbh292
  • 04-08-2018
In the question, the angles proves that this triangle is an isoceles triangle.

So we can set the two sides equal: [tex]x + 4 = 3x - 8[/tex]

Add [tex]-x+8 [/tex] to both sides of the equation: [tex]12 = 2x[/tex]

Divide both sides by 2: [tex]x = 6[/tex]

We find that [tex]x=6[/tex]. AC is also x, so, it is 6 too.
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