What is true about similar shapes?
The angles remain the same but the side lengths change and are proportional(same ratio).
The angles and the side lengths all stay the same.
The shape is flipped around but exactly the same.
What is true about congruent shapes?
The shape is flipped around and the side lengths are different.
The shape is exactly the same but is either mirrored, reflected or flipped.
The angles add up to 360 degrees.
Similar and congruent shapes are the same.
To find a missing side in a similar shape, you find the scale factor and then use this to find missing sides.
Look at the example and find the missing lengths.
42cm and 35cm
30cm and 29cm
20cm and 18cm
Find the missing angles in these congruent shapes.
10degrees
35degrees.
105degrees
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