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Question

In an isosceles right triangle, the number of lines of symmetry is ________.


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Solution

Define the line of symmetry

Line of symmetry : the line of symmetry is the imaginary line where you could fold the image and have both halves match exactly.

If we fold the isosceles triangle vertically, we can find two equal shapes of right-angled triangles. So, the folded line can be treated as a line of symmetry for the isosceles triangle as shown in the figure

Hence, In an isosceles right triangle, the number of lines of symmetry is 1 .


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