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if in triangle JKL, JK= 9, KL = 11, and JL=12, and in triangle PQR, PQ=9, QR=11, and PR=11, explain why triangle JKL and triangle PQR are not congruent

  • geometry -

    Congruent triangles have exactly the same size and shape.

    JKL has a perimeter of 32, but the perimeter of PQR is only 31. Therefore
    the triangles are not the same size.

    PQR has 2 equal sides. Therefore, it is
    an isosceles triangle. JKL is not isosceles. So the triangles do not have
    the same shape.

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