Answer :

\(\overleftrightarrow {AB} \) , \(\overleftrightarrow {AC} \) \(\overleftrightarrow {AD} \) ,\(\overleftrightarrow {BC} \) , \(\overleftrightarrow {BD} \) ,\(\overleftrightarrow {CD} \) , \(\overleftrightarrow {BA} \) ,\(\overleftrightarrow {CA} \) , \(\overleftrightarrow {DA} \) ,\(\overleftrightarrow {CB} \) , \(\overleftrightarrow {DB} \) ,\(\overleftrightarrow {DC} \) ,

- Q.1 Use the figure to name : (a) Five points (b) A line (c) Four rays (d) Five line segments
- Q.3 Use the figure to name: (a) Line containing point E. (b) Line passing through A. (c) Line on which O lies (d) Two pairs of intersecting lines.
- Q.4 How many lines can pass through (a) one given point? (b) two given points?
- Q.5 Draw a rough figure and label suitably in each of the following cases: (a) Point P lies on \(\overline {AB}\) . (b) \(\overleftrightarrow {XY} \) and \(\overleftrightarrow {PQ} \) intersect at M. (c) Line L contains E and F but not D. (d) \(\overleftrightarrow {OP} \) and \(\overleftrightarrow {OQ} \) meet at O.
- Q.6 Consider the following figure of line MN. Say whether following statements are true or false in context of the given figure. (a) Q, M, O, N, P are points on the line \(\overleftrightline {MN} \) . (b) M, O, N are points on a line segment \(\overline {MN} \). (c) M and N are end points of line segment \(\overtime {MN} \). (d) O and N are end points of line segment \(\overline {OP} \) . (e) M is one of the end points of line segment \(\overline {QO} \). (f) M is point on ray \(\overrightarrow {OP} \). (g) Ray\(\overleftrightarrow {OP} \) is different from ray \(\overrightarrow {QP} \). (h) Ray \(\overleftrightarrow {OP} \) is same as ray \(\overrightarrow {OM} \) . (i) Ray \(\overrightarrow {OM} is not opposite to ray \(\overleftrightarrow {OP} \). (j) O is not an initial point of \(\overleftrightarrow {OP} \). (k) N is the initial point of \(\overrightarrow {NP} \) and \(\overrightarrow {NM}

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