Draw a small circle. Use shading to show a semi-circle.

Draw a small circle. Use shading to show a minor segment.

Draw a small circle. Use shading to show a tangent to the circle.

Draw a small circle. Use shading to show angle $y$ subtended by a minor arc $MN$.

Circle $1$ and circle $2$ have the same centre $\left(O\right)$. Use the correct terms or letters to copy and complete each statement.

$OB$ is a $\_\_\_\_\_$of circle $2$.

Circle $1$ and circle $2$ have the same centre $\left(O\right)$. Use the correct terms or letters to copy and complete each statement.

$DE$ is the $\_\_\_\_\_$of circle $1$.

Circle $1$ and circle $2$ have the same centre $\left(O\right)$. Use the correct terms or letters to copy and complete each statement.

$AC$ is a $\_\_\_\_\_$of circle $2$.

Circle $1$ and circle $2$ have the same centre $\left(O\right)$. Use the correct terms or letters to copy and complete each statement.

$\_\_\_\_\_$ is a radius of circle $1$.

Circle $1$ and circle $2$ have the same centre $\left(O\right)$. Use the correct terms or letters to copy and complete each statement.

$CAB$ is a $\_\_\_\_\_$ of circle $2$.