The number of line(s) of symmetry of a regular pentagon is:

1. 4

2. 5

3. 0

4. none of these

The number of lines(s) of symmetry which an isosceles right angled triangle has:

1. 0

2. 2

3. 1

4. none of these

The number of lines(s) of symmetry which a circle of radius 6 cm has:

1. 2

2. 4

3. infinite

4. none of these

The number of lines(s) of symmetry of the figure given alongside is:

1. 1

2. 2

3. 4

4. none of these