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math

posted by on .

the legs of an isosceles triangle have lengths x+1 and -x+7. the base has length 3x-3. what is the length of the base?
a. 6
b. cannot be determined
c. 4
d. 3

  • math - ,

    we know that

    x+1 = -x+7
    x=3

    so the base is 6

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