Mathematics
Statement I: Any two-dimensional figure has atleast one line of symmetry.
Statement II: A mirror line is called a line of symmetry.
Statement I is true but statement II is false.
Statement I is false but Statement II is true.
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.
Symmetry
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Answer
Statement I is false, because many two-dimensional figures (such as a scalene triangle or a parallelogram) have no line of symmetry at all.
Statement II is true, because by definition, the line about which a figure is symmetrical is also the mirror line for the two halves of the figure.
Hence, Option 2 is the correct option.
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Statement II: All the lines of symmetry of a circle are also its diameters.
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Statement II: A semicircle has one line of symmetry, whereas an arrowhead has 2 lines of symmetry.
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Both Statement I and Statement II are false.