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5. To prove that triangle PQR is isosceles, a student began by stating that
since Q is on the segment perpendicular to PR, Q is equidistant from the
endpoints of PR. What is the error in the student's reasoning ?

5 To prove that triangle PQR is isosceles a student began by stating that since Q is on the segment perpendicular to PR Q is equidistant from the endpoints of P class=

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isabellakoster
the triangle could only be proven isosceles if it was proven or given that SP = SR or thatangles PQS = RQS otherwise the reasoning is incomplete

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