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P. 2
a) By tracing
b) By cutting and superimposition method
Two plane figures, say, F1 and F2 are congruent if the trace-copy of F1 fits
exactly on that of F2. We write this as F1 ≅ F2.
3) CONGRUENCE AMONG LINE SEGMENTS
Two line segments, say, AB and EF, are congruent if they have equal lengths.
We write this as AB ≅ EF or AB = CD
4) CONGRUENCE OF ANGLES
Two angles, say, ∠ABC and ∠PQR, are congruent if their measures are equal.
i.e ∠ABC ≅ ∠PQR or as m∠ABC = m∠PQR.
If two angles have the same measure, they are congruent. Also, if two angles are
congruent, their measures are same.
