In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other. ... So two distinct plane figures on a piece of paper are congruent if we can cut them out and then match them up completely-Congruent
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A′BC are congruent, because triangle ABC falls exactly on triangle.
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In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other. ... So two distinct plane figures on a piece of paper are congruent if we can cut them out and then match them up completely-Congruent