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.
In an equilateral triangle: 3 In an isosceles triangle: 1 In a scalene triangle: 0
None.
two if the triangle has a right angle
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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.
Only one line of symmetry, it is the line that contains the median of the isosceles triangle (that passes through the vertex and perpendicular to the base).
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An isosceles triangle has only 1 line of symmetry.
1One
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one
One
None.
2
A right angle triangle has a pair of perpendicular lines that meet each other at 90 degrees.
An isosceles triangle has 1 line of symmetry