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Lines of Symmetry

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Question 54

State whether the statements are true or false:

If an isosceles triangle has more than one line of symmetry, then it must be an equilateral triangle.

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Solution

True

Because an equilateral triangle has three lines of symmetry. If it's only an isosceles triangle then it will have only one line of symmetry.

Lines of symmetry for an equilateral triangle:

Line of symmetry for an isosceles triangle:

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Lines of Symmetry

Standard VI Mathematics

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