ohamm
ohamm ohamm
  • 17-03-2017
  • Mathematics
contestada

The legs of an isosceles triangle have lengths x+1 and -x+7. The base has length 3x-3. What us the length of the base?

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zhduch
zhduch zhduch
  • 17-03-2017
The legs of an isosceles triangle are equal, so
x+1= -x+7
2x=6
x=3
Plug x into the equation for the base:
3x-3=3(3)-3=6

Therefore the base is 6 .
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