Symmetry Test -...

Which of the following pairs of letters of English alphabet have reflection symmetry about a vertical mirror?

A figure has a rotational symmetry of order not more than 1. Then, the angle of rotation can be

How many of the following letters do not have a rotational line of symmetry?

A, K, L, H, O, Z, I, S, X

Fill in the blanks:

A circle has ______P______ line(s) of symmetry.

A scalene triangle has ____Q______ line(s) of symmetry and an isosceles trapezium has _____R______ line(s) of symmetry.

Write (T) for true and (F) for false:

a. An irregular polygon of n sides has 2n lines of symmetry.
b. An equilateral triangle has 3 lines of symmetry.
c. Number 0 has both rotational and line symmetry.
d. A square has 2 lines of symmetry and rotational symmetry of order 1.