Similarity and congruence (Edexcel GCSE Maths): Flashcards
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Practise the cards
12 cards from this deck
Definition of similar shapes
Definition of similar shapes
Same angles but different sizes
Angles in similar shapes
Angles in similar shapes
All corresponding angles are identical
Sides in similar shapes
Sides in similar shapes
Proportional (in the same ratio)
What scale factor tells you
What scale factor tells you
How many times bigger or smaller one shape is vs the other
Definition of congruent shapes
Definition of congruent shapes
Exactly identical in both shape and size
Size of congruent shapes
Size of congruent shapes
Exactly the same size
Three transformations that create congruent shapes
Three transformations that create congruent shapes
Rotations, reflections, translations
What enlargements create
What enlargements create
Similar shapes, not congruent shapes
Size difference: similar vs congruent shapes
Size difference: similar vs congruent shapes
Similar: different sizes. Congruent: same size
Sides difference: similar vs congruent shapes
Sides difference: similar vs congruent shapes
Similar: proportional sides. Congruent: equal sides
How volume scales in 3D similar shapes
How volume scales in 3D similar shapes
By the cube of the scale factor
Finding small shapes fitting in large 3D shape
Finding small shapes fitting in large 3D shape
Cube the scale factor