Maths Gcse Aqa Foundation
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Statistical-Diagrams Aqa Foundation6 主题
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Averages-Ranges-And-Data Aqa Foundation7 主题
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Tree-Diagrams-And-Combined-Probability Aqa Foundation2 主题
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Transformations Aqa Foundation4 主题
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Vectors Aqa Foundation3 主题
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Pythagoras-And-Trigonometry Aqa Foundation5 主题
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Congruence-Similarity-And-Geometrical-Proof Aqa Foundation5 主题
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Volume-And-Surface-Area Aqa Foundation3 主题
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Area-And-Perimeter Aqa Foundation4 主题
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2D-And-3D-Shapes Aqa Foundation4 主题
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Angles-In-Polygons-And-Parallel-Lines Aqa Foundation5 主题
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Symmetry-And-Shapes Aqa Foundation4 主题
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Forming-And-Solving-Equations Aqa Foundation2 主题
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Linear-Equations Aqa Foundation3 主题
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Algebraic-Reasoning Aqa Foundation1 主题
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Introduction Aqa Foundation10 主题
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Relative-And-Expected-Frequency Aqa Foundation
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Percentages Aqa Foundation5 主题
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Order-Of-Operations-Bidmasbodmas Aqa Foundation
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Counting-Principles Aqa Foundation
Congruence Aqa Foundation
Exam code:8300
Congruence
What is congruence?
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Two shapes are congruent if they are identical in shape and size
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One may be a reflection, rotation, or translation of the other
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If one shape is an enlargement of the other, then they are not identical in size and so are not congruent
How do we prove that two shapes are congruent?
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To show that two shapes are congruent you need to show that they are both the same shape and the same size
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If a shape has been reflected, rotated or translated, then its image is congruent to it
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Show that corresponding sides are the same length
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Show that corresponding angles are the same size
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You do not need to show that they are facing in the same direction
Examiner Tips and Tricks
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Tracing paper can help in the exam if you are unsure whether two shapes are congruent
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Trace over one shape and then see if it fits exactly on top of the other
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Only do this if the image is drawn to scale
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Worked Example
Write down the letters of the two shapes below which are congruent to A.
Shapes C and D are congruent to A
Responses