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

A semicircle has ___________ line (s) of symmetry.

An isosceles triangle has a line of symmetry but does not have rotational symmetry. true or false?

If an isosceles triangle has more than one line of symmetry, then it need not be an equilateral triangle.

If an isosceles triangle has more than one line of symmetry, then it must be an equilateral triangle.

State true or false: An equilateral triangle has two lines of symmetry.

A protractor has __________ line/lines of symmetry.