Line of symmetry

Fill in the blanks:- There are ___ lines of symmetry for a square but ___ lines of symmetry for a rectangle.

On a squared paper, sketch the following: (a) A triangle with a horizontal line of symmetry but no vertical line of symmetry. (Hint : It will be if you first draw the lines of symmetry and then complete the figures.)

On a squared paper, sketch the following: (c) A quadrilateral with a horizontal line of symmetry but no vertical line of symmetry. (Hint : It will be if you first draw the lines of symmetry and then complete the figures.)

Lines of symmetry of a line segment

Which of the following statements are true and which are false ? (i) A parallelogram has no line of symmetry. (ii) An angle with equal arms has its bisector as the line of symmetry (iii) An equilaterla triangle has three lines of symmetry. (iv) A rhombus has four lines of symmetry. (v) a square has for lines of symmetry. (vi) A rectangle has two lines of symmetry. (vii) Each one of the letters H,I,O,X of the English alpabet has two lines of symmetry.

The number of lines of symmetry in fig. is

The number of lines of symmetry in a ruler is

Lines of symmetry of an isosceles trapezium

Lines of symmetry of a semicircle