reflection
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a reflection flips a shape over to create a mirror image
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in this example the triangle on the right has been reflected flipped over
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the dotted line to create a mirror image
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or we can say that the vertices of the triangle a B and C has been reflected
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flipped over the dotted line to create the mirror image as another triangle
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having virtus 'as a -
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be - and see -
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notice that the second figure which is called the image is exactly opposite the
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original figure
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you can remember this because when you look in a mirror you see a reflection
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but you are seeing a mirror image in which everything is opposite if you have
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writing on your shirt
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it's backwards in the mirror
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notice that the dotted line
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is called the line of reflection
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it is also sometimes referred to as the axis of reflection or the mirror line
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can you see how the original point a and the new . a are the exact same distance
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three units from the line of reflection
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the same is true for . bees one unit away
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and . sees three units away
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whenever a shape is reflected each set of the corresponding must be the same
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distance from the line of reflection
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we see reflections all the time in real life
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obviously we see them in mirrors but they also occur in water
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when a reflection occurs in water however it is not a technical
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mathematics reflection
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why not
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because the image in the water is normally somewhat distorted it is not
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the exact same size and shape