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An equilateral triangle has 3 lines of symmetry
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An equilateral triangle has 3 lines of symmetry
There can be only one pair of perpendicular lines in an isosceles triangle when it is a right angled isosceles triangle. A non right angled isosceles triangle has no pairs of perpendicular lines.
An isosceles triangle has only 1 line of symmetry.
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An isosceles triangle has 1 line of symmetry