Without drawing the triangles write all six pairs of equal measures in each of the following pairs of congruent triangles.
(a) ∠S = ∠D, ∠T = ∠E, ∠U = ∠F, ST = DE, TU = EF, SU = DF
(b) ∠A = ∠L, ∠B = ∠M, ∠C = ∠N, AB = LM, BC = MN, AC = LN
(c) ∠Y = ∠P, ∠Z = ∠Q, ∠X = ∠R, YZ = PQ, ZX = QR, XY = PR
(d) ∠X = ∠M, ∠Y = ∠L, ∠Z = ∠N, XY = ML, YZ = LN, XZ = MN
By definition of congruent triangles, corresponding sides and angles are equal.