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Is there a quadrilateral with 1 line of symmetry and no parallel sides?
Yes. Think of a kite shape. Symmetry along its length but no parallel sides.
A shape which has at least 1 line of symmetry?
Symmetry is a shape, object or drawing that on both sides are exactly the same! So a square, rectangle, circle, diamond, and more.When you draw something like a square cut it out and see how many times you can fold it. If you can fold it one time that fold represents a line of symmetry! A heart ❤️ has one line of symmetry. If you can not fold it with equal parts on both sides then it does not have a line of symmetry.
What shape has at least 1 line of symmetry?
An isosceles triangle has one line of symmetry
What shape has one line of symmetry and no rotational symmetry?
Isosceles triangle, kite. -improvement: an isosceles triangle actually has three lines of symmetry, equal to the number of sides. It is easy to design irregular polygons with an odd number of sides that have just one line of symmetry. A parabola. Many more functions that are more complex - cardioid, for example.
How many lines of symmetry?
There are infinitely many lines of symmetry. Every line can be a line of symmetry for a suitable shape.
