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10 Cards in this Set
- Front
- Back
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what is symmetry
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An object or image has symmetry if it is balanced and can fit onto its self either by reflection or rotation.
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what is a line of symmetry
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A line that devides a figure into two reflected parts. This is also called an axis of symmetry or a line of reflection.
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how many lines of symmetry dose a square have?
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4,
1 horizontal, 1 vertical, and 2 oblique |
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name 3 line of symmetry
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vertical, horizontal and oblique
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dose every figure or image have 1 or more line's of symmetry?
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no, a shape may not have line's of symmetry
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what is center of rotation?
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the point around wich an object or design turns
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what is rotation symmetry?
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when a shape can be turned about its center of rotation so that it fits onto its outline more then once in a complet turn.
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what is order of rotation?
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the number of times a shape fits onto its self in one complet turn,
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what is angle of rotation?
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minnimum measure of the angle needed to turn a shape or desighn onto its self, Can be meshured in degrees or in fractions of turns.
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what shapes have rotatinal simitry, and how many times dose it fitr onto its self.?
tringle, dimond, circle |
triangle- yes, 3
dimond- no, circle- yes infinity... haha |
