Answer :

(a) AB = LN


BC = ML


AC = NM


Hence; both triangles are congruent by SSS criterion


∆ABC ∆NLM


(b) LM = GH


MN = HI


NL = IG


Hence; both triangles are congruent by SSS criterion


∆LMN ∆GHI


(c) LM = LO


MN = ON


LN = LN


Hence; both triangles are congruent by SSS criterion


∆LMN ∆LON


(d) WY = ZX


WX = ZY


XY = XY


Hence; both triangles are congruent by SSS criterion


∆XYW ∆YXZ


(e) AO = OD


BO = OE


AB = DE


Hence; both triangles are congruent by SSS criterion


∆AOB ∆DOE


(f) TU = UV


TS = VS


US = US


Hence; both triangles are congruent by SSS criterion


∆TUS ∆VUS


(g) SR = PQ


PS = QR


PR = PR


Hence; both triangles are congruent by SSS criterion


∆PQR ∆RSP


(h) SU = PR


ST = PQ


TU≠RQ


Hence triangle are not congruent


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