In the following figure, write angles of the quadrilateral ABCD.

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(a)

Draw a rough figure and label suitably in each of the following cases.
(a) Point P lies on \(\bar {AB}\).
(b)\(\overleftrightarrow {XY}\) and\(\overleftrightarrow {PO}\) intersect at M.
(c) Line I contains E and F but not D.
(d)\(\overleftrightarrow {OP}\) and \(\overleftrightarrow {OQ}\) meet at O.

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(a)

Illustrate, if possible, each one of the following with a rough diagram:
(a) A closed curve that is not a polygon.
(b) An open curve made up entirely of line segments.
(c) A polygon with two sides.

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(a)

Draw a five sided polygon and shade its interior.

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(a)

Draw rough diagrams of two angles such that they have
(a) one point in common.
(b) two points in common.
(c) three points in common.
(d) four points in common.
(e) one ray in common.

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(a)

(a) Identify three triangles in the figure.

(b) Write the names of seven angles.
(c) Write the names of six line segments.
(d) Which two triangles have \(\angle B\) as common?

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(a)

In the given figure, write the name of triangles.

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(a)

From the figure, identify
(a) the centre of circle
(b) three radii
(c) a diameter
(d) a chord
(e) two points in the interior
(f) point in the exterior
(g) a sector
(h) a segment

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(a)

Draw a rough sketch of a quadrilateral ABCD Write
(i) two pairs of opposite sides.
(ii) two pairs of adjacent angles.

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(a)

Here is a ray \(\vec {OA}\) It starts at 0 and passes through the point A. It also passes through the point B. Can you also name it as \(\vec {OB}\)?Why? \(\vec {OA}\) and \(\vec {OB}\) are same here.
Can we write \(\vec {OA}\) as \(\vec {AO}?\) Why or why not? Draw five rays and write appropriate names for them. What do the arrows on each of these rays show?

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(a)