IGCSE /Grade 9
Maths MCQ Based On Working with congruence statements and corresponding parts
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IGCSE Grade 9 Maths Working with congruence statements and corresponding parts
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the symbol used while denoting congruent figures
calculate lengths of triangle ABC.
If two triangles are congruent, it means that all corresponding parts of the triangles are congruent. In this case, ∆ABC and ∆PQR are congruent, so all corresponding parts are congruent.
According to the Angle-Angle (AA) criterion for congruence, if two angles of one triangle are congruent to two angles of another triangle, then the two triangles are congruent.
The criterion for congruent triangles.
congruent figures can be rotations of each other
AB is the side opposite angle A, and DE is the side opposite angle D. Use AA criterion.
compare angles of both figures, sum of all angles in a polygon
compare vertices and sides of the two triangles
Use congruency criterion.
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