Which option is not correct about the Lagrange family of triangular elements used in FEM?

Which option is not correct about the Lagrange family of triangular elements used in FEM? Correct Answer 3rd-degree polynomial corresponds to 9 noded triangle

A pth degree polynomial corresponds to n noded triangular element with n=0.5(p+2)(p+1), where n=0, 1, 2 … For p=0, n=1. For p=1, n=0.5*3*2, =3. For p=2, n=0.5*3*4 =6. For p=3, n=0.5*4*5 =10.
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