On a squared sheet of paper, draw and name the type of triangle which has three lines of symmetry.

In the following figure, mention which of the dotted line drawn is the line is symmetry.

Draw any $\Delta \mathrm{XYZ}.$ Take a point $\mathrm{O}$ in its interior. Draw a perpendicular from $\mathrm{O}$ to $\overline{\mathrm{XY}},\overline{\mathrm{YZ}}$ and $\overline{\mathrm{XZ}}$.

For the given figure, name the following.

Two parallel chords

For the given figure, name two pairs of intersecting line segments.

For the given figure, name a diameter and its point of intersection with chord $\mathrm{AC}$.

For the given figure, name a radius.

For the given figure, name the type of quadrilateral $\mathrm{ABCD}$.

Name two right-angled triangles for the following figure.