Posted by sherianna johnson on .
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 
Henry,
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.