Draw figures with label according to the information given below.
(a) $\overleftrightarrow{AB}$ and $\overleftrightarrow{CD}$ intersect at O.
(b) Line m contains X and Y but not A.
(c) $\overleftrightarrow{TP}$ and $\overleftrightarrow{TS}$ meet at T.
[3 MARKS]

Draw a rough figure and label suitably in each of the following cases:

(a) Point P lies on.

(b) and intersect at M.

(c) Line l contains E and F but not D.

(d) and meet at O.

In the given figure, three coplanar lines AB, CD, and EF intersect at point O. Find the values of x, y, z, and t.

In the given figure, lines $AB$ and $CD$ intersect at $O.$ Find the value of $x+y$.

In the given figure, AB and CD are equal chords of a circle with centre O. If AB and CD intersect each other at right angle at point P and perpendiculars from the centre to AB and CD meet them at M and N respectively, then MONP is a_______.