question archive "Elsie is making a quilt using quilt blocks like the one in the diagram
"Elsie is making a quilt using quilt blocks like the one in the diagram
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"Elsie is making a quilt using quilt blocks like the one in the diagram.
a. How many lines of symmetry are there?
b. Does the quilt square have rotational symmetry? If so, what is the angle of rotation?"
b. Does the quilt square have rotational symmetry? If so, what is the angle of rotation?"
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Answer:
4 lines of symmetry, and yes, 90 degree rotational symmetry.
Explanation:
Lines of symmetry are lines through which a figure an be folded and be the same on each side of the fold. This figure can be folded in half horizontally, vertically, and through both diagonal; this is 4 lines.
Rotational symmetry means you can turn a figure and have it look the same. This figure can be rotated multiples of 90 degrees and look the same.
