Similar Shapes (Edexcel GCSE Maths): Quizzes

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Similar shapes
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12 questions from this quiz

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What is the best description of similar shapes?

Same shape, different sizes

Can similar shapes be rotated or reflected versions of each other?

Yes, they can be rotated or reflected

What must be true about angles in similar shapes?

All corresponding angles are equal

How many conditions must be met for shapes to be similar?

Both angles equal and sides proportional

If all three angles in one triangle match the angles in another triangle, what can you conclude?

The triangles are similar

Which triangle condition involves two sides proportional with the same included angle?

Condition 3 for triangle similarity

What is the formula for scale factor?

new lengthoriginal length\frac{\text{new length}}{\text{original length}}

If AB=6AB = 6 cm and corresponding side DE=9DE = 9 cm, what is the scale factor?

1.51.5

If scale factor is 1.51.5 and BC=5BC = 5 cm, what is corresponding side EFEF?

7.57.5 cm

If scale factor is 1.751.75 and larger side GH=10.5GH = 10.5 cm, what is smaller corresponding side CDCD?

66 cm

What must be true about corresponding sides in similar shapes?

They must be proportional (same ratio)

How many special conditions can prove triangles are similar?

Three conditions

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