A semicircle has ___________ line (s) of symmetry.

A quadrant of a circle has ___________line of symmetry.

A letter X has __________ lines of symmetry.

An isosceles triangle has ________ line (s) of symmetry.

The letter I has __________ lines of symmetry.

A protractor has __________ line/lines of symmetry.

A parallelogram has ______________line of symmetry.

A semicircle ACB has one line of symmetry,namely the perpendicular bisector of diameter AB. true or false?

Rhombus is a figure that has _______lines of symmetry and has a rotational symmetry of order__________.