Coaching Centre
Chapter 10: Transformations and congruence Notes
Reflections, translations and rotations on the Cartesian plane, line and rotational symmetry, congruent figures, the congruence tests for triangles, and similar figures with scale factors.
Sections
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10A Reflections and translations Mastered
Reflecting points and shapes in the x-axis, y-axis and other lines, and translating them by a given number of units across and up or down.
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10B Rotations and symmetry Mastered
Rotating points by 90°, 180° and 270° about the origin, line symmetry and rotational symmetry of shapes.
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10C Congruent figures and congruent triangles Mastered
Congruent figures and matching sides and angles, and the four tests for congruent triangles SSS, SAS, AAS and RHS.
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10D Enlargements and similar figures Mastered
Enlargements and scale factors, similar figures, finding missing sides using the scale factor, and shadow problems.