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प्रश्न
The number of lines of symmetry in a 45° – 45° – 90° set-square is ______.
पर्याय
0
1
2
3
उत्तर
The number of lines of symmetry in a 45° – 45° – 90° set-square is 1.
Explanation:
Since, a 45° – 45° – 90° set square has a shape of isosceles triangle and an isosceles triangle has one line of symmetry.
Note: In the given set square two angles are same, it means two sides will be same. So, the shape of set square is an isosceles triangle.
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