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. 4
B. 6
C. 3
D. cannot be determined

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The legs are congruent if is an isoceles triangle.

@Shalante I'm confused.. Can you explain more? I don't really understand Geometry that well..

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