Question

Which of the following figures exhibits both line symmetry and rotational symmetry?

• A. Equilateral triangle
• B. Isosceles triangle
• C. Scalene triangle
• D. None of the above

Answer 1

The correct option is A Equilateral triangle

An equilateral triangle has 3 lines of symmetry.
An isosceles triangle has 1 line of symmetry.
A scalene triangle has no line of symmetry.
Only an equilateral triangle exhibits rotational symmetry as it can be rotated by an angle of ${120}^{\circ }$ to get the same exact shape.
Thus, from the figures given, only an equilateral triangle exhibits both line and rotational symmetry.