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A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

# How many lines of symmetry does an isosceles triangle have?

A triangle with two sides of equal length is an isosceles triangle

## Answer: An isosceles triangle has 1 line of symmetry.

The triangle also has 2 equal interior sides.

## Explanation:

A triangle is only said to be an isosceles triangle if it has 2 equal sides. Therefore, every isosceles triangle by definition has 1 line of symmetry. It can be drawn by joining the vertex between equal sides and the midpoint of the opposite side.

### Hence, an isosceles triangle has 1 line of symmetry.

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