Without drawing the triangles write all six pairs of equal measures in each of the following pairs of congruent triangles.

Correct answer is 

(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, YX = PR

(d) ∠X = ∠M, ∠Y = ∠L, ∠Z = ∠N, XY = ML, YZ = LN, XZ = MN

We know that, corresponding parts of congruent triangles are equal.

(a) ΔSTU ≅ ΔDEF

∠S = ∠D, ∠T = ∠E and ∠U = ∠F ST = DE, TU = EF and SU = DF

(b) ΔABC ≅ ΔLMN

∠A = ∠L, ∠B = ∠M and ∠C = ∠N AB = LM, BC = MN and AC = LN

(c) ΔYZX ≅ APQR

∠T = ∠P, ∠Z = ∠Q and ∠X = ∠R YZ = PQ, ZX = QR and YX = PR

(d) ΔXYZ ≅ ΔMLN

∠X = ∠M, ∠Y = ∠L and ∠Z = ∠N XY = ML,YZ = LN and XZ = MN