An isosceles triangle has one line of symmetry
The letter D!
a Square.
An isosceles triangle has one line of symmetry
Every right circular cone, conic section, and regular polygon has at least one line of symmetry.
An isosceles triangle has one line of symmetry
An isosceles triangle has one line of symmetry
Trapezium
a heart
the shape is a heart.
scalene triangle.
a pentagon
Ah, what a lovely question! A shape with 5 sides and 1 line of symmetry is called a pentagon. It's like a beautiful little house with one side that can be folded perfectly in half to match up. Isn't it just delightful to explore the symmetry and harmony in nature's creations?
Isosceles triangle
You cannot have one parallel line. There must be another line that it is parallel to. Also, 1 symmetry is meaningless - you can have one axis of symmetry or rotational symmetry of order one. The answer will depend on which one it is.
well it has 1 line but it depends on the shape of the rhombus
Such shapes are known as symmetrical.