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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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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?

User CuongHuyTo
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7.7k points

1 Answer

3 votes
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 .
User Jwlaughton
by
8.4k points
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