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Which one of the following options has the correct sequence of objects arranged in the increasing number of mirror lines (lines of symmetry)?
- Circle: Square: Equilateral triangle: Isosceles triangle
- Isosceles triangle: Equilateral triangle: Square: Circle
- Equilateral triangle: Isosceles triangle: Square: Circle
- Isosceles triangle: Square: Equilateral triangle: Circle
Correct answer: Isosceles triangle: Equilateral triangle: Square: Circle
Solution
The isosceles triangle has one line of symmetry, the equilateral triangle has three, the square has four, and the circle has infinite lines of symmetry, making the correct sequence based on the increasing number of mirror lines: Isosceles triangle, Equilateral triangle, Square, Circle.
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