1.

Draw ∆ABC and ∆LMN such that two pairs of their sides and the angles included by them are congruent. Draw ∆ABC and ∆LMN, l(AB) = l(LM), l(BC) = l(MN), m∠ABC = m∠LMN. Copy ∆ABC on a tracing paper. Place the paper on ∆LMN in such a way that point A coincides with point L, side AB overlaps side LM. What do you notice?

Answer»

We notice that ∆ABC ≅ ∆LMN.



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